試也無用 的英文怎麼說
中文拼音 [shìyěwúyòng]
試也無用
英文
it is no use trying-
This test chooses general industrial vc / vac copolymer as raw material, various supplement material additives are also the common conventional avirulent additive on industry ; the plastic material processing routine is also the universal method to make the thermoplastic plate of low temperature of vc / vac copolymer that accords with medical requirement that its softening temperature is 55
本試驗選用氯醋共聚樹脂為主要原材料，所用輔料添加劑也是工業上常見的無毒性常規添加劑；採用常規的塑料加工成型方法及設備製造出軟化點為55的、符合醫用要求的低溫熱塑性氯醋共聚樹脂板材。Presently, the world largest scale and most influential brand meeting : 2004 international vehicle maintenance equipment exhibition attracts exhibiters from more than 100 countries and regions in the world to participate the conference in german frankfort. zonda auto group, the leader in chinese maintenance trade, introduced the new product which behalf the international advanced technology, such as paint equipment, became the spot light on the exhibition. the new product zd - 900 of zonda is a new - type of energy - conserving product, adopt international advanced technical, the heat system which the core parts of the product meet the high level demand
車輛行駛時，可利用富餘功率給電池充電，無需停車充電，也不必增加充電站該車每100公里油耗僅22 . 4升，比同等噸位的燃油汽車節油30 % ，加滿一箱油可行駛650公里尾氣排放達到了歐標準維修費用僅為燃油車的1 3該車在國家汽車質量檢測中心通過了54項強制性試驗，下線后已行駛1 . 7萬公里，表現出了良好的安全性能。From the employer ' s point of view, taking on promising graduates is not only a source of free labour ; it is a no - strings way of trying someone out before giving them a proper job
從僱主的角度看，接受有潛力的畢業生實習不但可以獲取免費勞力，也是一種無需承諾的試用方式，不用提供正式職位。Translate the following sentence into chinese, ‘ text messaging, or sending 160 characters of fewer to another cell phone, has become a discreet way to contact someone and, because it takes some tech - savvy know - how, it ' s a litmus test of sorts on how advanced a nation is in using wireless technology
發送文本信息，或者說發送少於160個字到另一部手機已成為聯系別人的一種隱秘的方法.因為這需要一定的技術技能，也就成為了一個國家在使用無線科技先進程度的試金石In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory
由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果In such problems, there are too many test cases to evaluate all the candidates, and a random sampling of test cases can be uninformative
在這類問題中，對于所有的候選解而言，由於其數目太多而無法對它們進行評估，而且隨機的測試事例采樣也不能提供有用的信息。Trying to track down memory leaks is a painful and sometimes fruitless task, and so we often end up deciding to make due by restarting all of the application servers every 24 hours or so - which we do either manually or by writing a chron job
試圖捕獲內存溢出是一件令人非常苦惱的事，有時還毫無收獲。所以，我們最後的決定常常是，大約每隔24小時就重新啟動所有的應用服務系統。當然，我們既可以手動執行，也可以通過編寫一個特定任務來實現。The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。These workers found that there was uncertainty regarding appropriate action to combat biofilm formation and lime scale. many hospitals also found the examination of rinse water for endotoxin as recommended in htm 2030 to be impractical, due to the cost, impracticability of tests and difficulties in quantitative methods
這些工作者發現，在如何對抗生物膜和氧化鈣上，各機構採取的措施不一定靠得住。許多醫院也發現，出於成本原因、測試的不可操作性和量化方法的困難性， htm 2030所推薦的漂洗用水內毒素檢驗無法操作。Thereupon he pawed the journal open and pored upon lord only knows what, found drowned or the exploits of king willow, iremonger having made a hundred and something second wicket not out for notts, during which time completely regardless of ire the keeper was intensely occupied loosening an apparently new or secondhand boot which manifestly pinched him, as he muttered against whoever it was sold it, all of them who were sufficiently awake enough to be picked out by their facial expressions, that is to say, either simply looking on glumly or passing a trivial remark
於是，他用粗笨的手攤開報紙，用心讀起天曉得什麼玩藝兒：發現了溺屍啦柳木王的豐功偉績啦艾爾芒格為諾丁獨得一百多分，在第二場比賽中無一出局啦264 。這當兒，老闆絲毫不理會艾爾的事正專心致志地試圖把那雙分不出新舊顯然穿著太緊的靴子弄鬆一點，並咒罵那個賣靴子的人。從那幫人的面部表情可以辨認得出，他們是醒著的，也就是說，要麼是愁眉苦臉的，要麼就講上句無聊的話。Be saying one more point, learning has to there is high ambition to, be have to there is great target, learn to just there is interest, learn model, the strength of the model is endless, is in own heart to have a mark pole, there is one noodles mirror, shine in glory oneself every moment. i feel you the best model is you dear father. your father ' s studying is very assiduous, also the right and wrong in common use heart of, can say that study constantly, the schoolbag takes along with, walking to where learn where, always feel study time isn ' t enough to use. after finishing university, work then can test graduate student above for two years, he works and takes examinations for peking for a year, result pass examination, but can ' t receive, come back and continue and work, the second year again take examinations, result again pass examination, that time just chase your house where peking, go abroad an australia afterwards, learn and cure from the beginning, on closing another pass, close a pass and pass, arrive currently become an overseas and study abroad doctor, chest surgery expert, foreigner all for your daddy pick thumb, have no assiduous study spirit where have today, your brains is also very intelligent, 100 divide 100 use on the study, own your father ' s assiduous spirit, the result would also obtain in the future
在多說一點，學要有大志向，就是要有遠大目標，學起來才有興趣，學有榜樣，榜樣的力量是無窮的，就是在自己的心目中有標桿，有一面鏡子，時刻照耀自己.我覺得你最好榜樣就是你親愛的爸爸.你爸爸學習是非常刻苦的，也是非常用心的，可以說手不釋卷，書包隨身帶，走到哪學到哪，總覺得學習時間不夠用.大學畢業后，工作兩年以上才能考研究生，他工作一年就北京參加考試，結果就考上了，但是不能接收，回來繼續工作，第二年又去參加考試，結果又考上了，那時才把你們家安在北京，后來出國到澳大利亞，學醫從頭來，一關又一關，關關通過，到目前成為一名海外留學博士，胸外科專家，外國人都為你爸挑大拇指，沒有刻苦的學習精神哪有今天，你的頭腦也很聰明，百分百用在學習上，擁有你爸爸的刻苦精神，未來成果也會取得的Experimental results show that the order of fluoride salt being put in and flux type also influences the phases constitution, morphology, distribution and absorbent rate of ti and b. the experiments on remelting master alloys and al or al alloys at a certain temperature range show that the phases constitution and size have a remarkable heredity
試驗結果表明，不同的氟鹽加入順序和熔劑種類的不同也直接影響著中間合金中化合物的相組成、形態、分佈以及中間合金中ti 、 b的實收率等。在用純鈦顆粒法制備中間合金時，熔煉溫度的改變只能影響tial _ 3晶體的尺寸大小，而無法改變其形態。While all of this may seem like reductionist science attempting to provide rational explanations for phenomena it does not understand, there is acknowledgement by some that neural activity alone is not proof of these experiences being imagined by the brain
這些理論似乎是利用簡化的科學，試圖為那些科學界還無法了解的現象進行合理的解釋，不過，有一些科學家也承認，單單藉由腦神經的活動，並不足以證實那些靈性體驗是由大腦想像出來的。Gb1094. 5 - 85 power transformers part 5 ability to withstand short circuit only applies to power transformers, not to balanced transformers. if short - circuit test on balanced transformers can be performed by means of single phase supply instead of three phase supply, and other special transformers can also be done in this way, so it is very significant to improve test capacity of transformer laboratory in our country
變壓器的短路強度只能通過短路試驗來驗證，國家標準gb1094 . 5 - 1985 《電力變壓器第5部分承受短路的能力》只適用於電力變壓器，對平衡變壓器等特殊變壓器並無具體規定，對于平衡變壓器，如果可以用單相電源預先短路法模擬三相電源的短路試驗，那麼其它特種變壓器的短路試驗也可以參照進行，這對提高我國變壓器試驗室的試驗能力具有重要意義。It is no use trying
試也無用A way to avoiding crack or reducing crack width of concrete or reducing distortion of member is using prestressed concrete. the writer tried to make full use of the merit of the prestressed concrete and designed prestressed concrete mandril to control crack of structure. the prestressed concrete mandril, which was firstly applied high pressure on a small concrete bar, and then was made in concrete, so it would act as reinforced bar and resist load. in this thesis the writer designed 24 mmnbers and had experimental study of them, reached the conclusion that the effect of resisting crack of the prestressed concrete mandril was good when the load was not large, it can enhance the capacity of resisting crack and reduce the crack distance and crack width, but when the loads was large, the effect of resisting crack was not good, when we used the prestressed concrete mandril and reinforced bar together in member, the effect of resisting crack was very good. the writer analysed the adherence mechanism and wreck mechanism of the prestressed concrete mandril in anxial tension members, and according to the character of the prestressed concrete mandril, the writer constructed the bond model of it. then the writer introduced the analysis theory of crack including the bond - slip theory, the non - slip theory, the synthesis theory and mathematics stat method. the different theory had different theory base, they considered that the primary affection of crack width was different. in this test, the crack distance and crack width of members which placed reinforced bar were match to the compute value of the code gb 50010 - 2002 very well. to the members which
本文共進行了24根試件的試驗研究，得出了預應力混凝土芯棒能較大地提高構件抗裂承載力，在荷載小於預應力混凝土芯棒的開裂荷載時有較好的抗裂效果，能較大地減小裂縫間距和裂縫寬度，但是當荷載較大預應力混凝土芯棒開裂時預應力混凝土芯棒的抗裂效果不是很好，若將普通鋼筋和預應力混凝土芯棒一起使用時則有很好的抗裂效果。本文分析了預應力混凝土芯棒在軸拉試件中的粘結機理和破壞機理，根據預應力混凝土芯棒本身的特點，提出了預應力混凝土芯棒與后澆混凝土之間的粘結模型。然後本文詳細介紹了經典的裂縫分析理論粘結滑移理論、無滑移理論、綜合理論和數理統計方法，各理論有著各自不同的理論基礎，認為影響裂縫寬度的主要影響因素也各不相同。The unconfined compressive strength, shearing strength and permeabi lity of stabilized soils were tested in laboratory, the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared. the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil. with the increase of water content, porosity ratio, degree of porosity, plasticity limit, liquid limit and liquid index, the compressive strength of cement - sodium silicate - stabilized soil decreases, while increases as the bulk weight and compressibility modulus
通過對水泥?水玻璃加固土的無側限抗壓強度試驗，以及用不同酸堿性水製成與養護的固結土所進行強度對比試驗，得出軟土的物理力學性質指標與加固土的抗壓強度之間存在一定的相關關系，即隨著含水量、孔隙比、孔隙度、液塑限及液性指數的增加，水泥?水玻璃加固土的抗壓強度相應地降低；而隨著原狀土的容重、壓縮模量的增加，水泥土的抗壓強度也隨之增加。But, with the development, it can ’ t meet the need of modern manufacture more and more. as a result, handhold digital storage oscilloscope is studied. handhold dso is an important genre of digital storage oscilloscope, it ’ s outstanding feature include small form, use battery instead of ac supply for power, and include the whole function of dso while implementing the basic function of multimeter. handhold dso can measure wave range automatic, analyze wave use cursor, measure resistance 、 diode and short circuit if choice digital multimeter
手持式數字存儲示波器是數字示波器的一個分支，它具有體積小、重量輕、便於攜帶、電池供電、無須外接交流電源等優點，它集數字萬用表（ dmm ） 、數字存儲示波器於一體，可自動對信號進行幅度的測量，也可用光標對波形進行分析，同時還可以通過菜單選擇來實現對電阻、二極體以及電路通斷的測試;可以選擇觸發通道和觸發模式。Beijing telecom s stm - 1 experiment could be dated back to the year 1999 when it was re - organizing its pstm network. however, stm - 1 was too new a technology at that time, and no relevant national standard was available. so an all - round interoperability testing between the stm - 1 exchange interface and beijing telecom s transmission system only took place in early 2000 with a view to exploring its technological feasibility and locating its possible problems
北京電信早在1999年就考慮嘗試在pstn組網中採用stm - 1介面，但是在交換機中採用stm - 1介面終究是新生事物，國家也無相關的標準與規范，所以北京電信在2000年初對交換機stm - 1介面及其與北京電信傳輸系統的互通特性進行了較為全面的測試，了解了這一技術方案的可行性及可能存在的問題，為北京電信以後採用交換機stm - 1介面組網積累了許多技術經驗。Because grow, factor is secrete by normal cell, do not have medicaments already kind noxiousness, also do not have immune reaction, because this is studying mechanism of its physiology action while, some already try out at clinical cure
由於生長因子是由正常細胞分泌，既無藥物類毒性，也無免疫反應，因此在研究其生理作用機制的同時，有的已試用於臨床治療。分享友人