有用長度 的英文怎麼說

中文拼音 [yǒuyòngzhǎng]
有用長度 英文
usable length
  • : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
  • : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
  • : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 有用 : useful; serviceable
  • 長度 : length; longitude; size; extent; footage
  1. 1. ecological effects of long - term organophasphate pesticides contamination on soil microflora the long - term effects of organophosphate pesticides contamination on soil microflora were investigated in the present study. little difference in total counts of bacteria, actinomycetes and fungi was observed between the contaminated and the non - contaminated soil. compared with the control there were a slight decrease in total counts of free - living nitrogen - fixer and denitrifying bacteria and a significant increase in those of ammonifying and ammonia - oxidizing and nitrifying _ bacteria in the methylparathion contaminated soil

    一、甲基對硫磷期污染對土壤微生物的生態學效應研究了機磷農藥甲基對硫磷期污染對土壤微生物的影響,實驗表明:土壤細菌、放線菌、真菌總的數量影響不大;自生固氮菌和反硝化細菌數量減少;氨化細菌、亞硝化細菌、硝化細菌的數量在污染土壤中卻所增加;與對照土壤相比,污染土壤呼吸作下降了29 . 93 ;氨化作和硝化作得到增強。
  2. It was suggested that eric - pcr could substitute for rapd in research related to the genetic identification and genetic diversity in auricularia and other edible and medicinal fungi : 2 to a certain extent, genetic differences among auricularia strains tested in this study did not have necessary relativity with their geographical origins respectively ; 3 in this study, genetic diversity in a. polytricha was higher than that in a. auricula : 4 in this study, a. fuscosuccinea had a higher homology to a. auricula than to a. polytricha ; 5 morphological characteristics validated the results from eric - pcr and provided a potential explanation for the higher similarity coefficient between a. auricular and a. fuscosuccinea ; 6 southern hybridization was employed by choosing a strain from a. auricula as a probe which hybridized with a. auricula and a. fuscosuccinea except a. polytricha, further confirming the veracity of the results from eric - pcr ; 7 in this study, isozyme analysis could not cluster the 7 strains from three auricularia species to different groups efficiently ; 8 2 strains from two auricularia species revealed high conservative degree and the restriction fragment patterns by 4 kinds of restricted enzymes showed no diversity

    本研究中,木耳屬2個種的2個菌株在its區域表現出較高的保守性, 4種限制型內切酶的酶切圖譜沒顯示出多態性;增加內切酶種類及供試菌株數量,可能獲得具多態性的限制性內切酶酶切圖譜; 9本實驗中, its區域的真菌特異性引物與真核生物通引物對于擴增效果無較大差異,擴增片段均為650bp左右; 10根據形態學實驗、 eric - pcr實驗以及southern雜交實驗的結果分析,紫木木耳屬種質資源的遺傳鑒定和遺傳多樣性評價耳極可能是毛木耳種的一個變種; n .本研究中所的gutc法是一種適於木耳屬菌株基因組洲a快速提取的方法; 12 .傳統的形態學分類法和現代的分子生物學分類法,兩者的關系是相輔相成,互為驗證
  3. Cute design barrette, made with high quality swarovski austrian crystals. a white hand on a black hand. this fashion hair accessory makes a nice finish to any style

    本款發夾一端採手的造型,很是可愛,一個小白手在一個小黑手上,上面還裝飾3顆晶瑩的水晶,適合裝飾各種的發型,為你的秀發增添活潑俏皮的風格。
  4. Then, the program is used to simulate the flow across the backward - step, and the conclusion is testified that the circumfluence length is related to the reyonlds number

    同時,利程序對后臺階繞流流動進行計算,驗證了后臺階繞流迴流和雷諾數關的結論。
  5. Cruise missile with many good qualities, such as wide uses, high precision, big power, small volume, doughty charge ability, speedy corresponsive ability, high function - cost proportion. because of the good qualities had by ballistic missile and plane, the cruise missile is a lethal weapon that constitute a weighty threat to enemy states in the modem war

    巡航導彈具途廣、精高、威力大、體積小、突防能力強、反應速快、效費比高等特點,正是由於巡航導彈兼彈道導彈和飛機的諸多優,所以它便成了現代戰爭的「殺手鐧」 ,成為對敵方構成重大威脅的重要武器。
  6. It is the key of ebfs, therefore, furthermore calculation about link are carried out in this thesis, introduced achieved research, summarized the affect of link on whole capability in the first, the second, numerical calculation are proceeded on link with ansys : with the purpose of discussing yielding mode critical length of link, established five different specimens ; with the purpose of discussing the influence of h / tw of web, b / tf of flange and h / b, established eighteen different specimens ; with the purpose of discussing the affect of stiffener, established four different specimens, and elaborated the affect of stiffener on link based on achieved test researches

    因此,本文對耗能梁段進行進一步計算分析,概述耗能梁段對整體性能的影響,並利限元程序ansys對耗能梁段進行數值計算:針對耗能梁段的屈服類型建立5種不同的模型,計算討論耗能梁段屈服類型的劃分;針對耗能梁段腹板高厚比、翼緣寬厚比以及梁段截面形狀等因素共建立了18種模型進行計算分析;針對加勁肋對耗能梁段的作建立了4種模型,並結合已的試驗闡述了加勁肋對耗能梁段的影響。
  7. These leds light sources are not only adjustment and uniformity but also smaller, less expensive, required less power, generated less heat. especially, the pattern of the construct both aggregate and desegregate in design was to realize different light intensity illumination on same biology sample at the same time. the selectivity, work efficiency and experiment veracity have been improve greatly

    該系列光源除了具備光強可調、分佈均勻優勢外,還具、波峰寬適宜,以及小巧、價廉、能耗低、發熱少等特點,尤其是該生物光源在設計時採的單元組裝模式,使得不同強的光照能夠在同一批生物樣品上實現,大大拓寬了生物實驗的可選擇性,提高了工作效率和實驗準確性。
  8. On the basis of the others, according to the constructional feature of the constitution of the composed soil nails, the computation mode of the he strut frame made of composed soil nails was set up to analyze the distortion of the he strut frame made of composed soil nails when it is stressed. with the engineering data, the strut frame made of composed soil nails is analyzed with the program ababqus, and the effects of the distortion characters, the property of the deposition of the ground, the mechanical property of the soil nails, the variation of the length and the separation of the soil nails, and the diametric of the mixing piles on the strut frame made of composed soil nails, and the distortion property of the strut frame made of composed soil nails under different ground conditions

    在總結前人的研究成果下,針對復合土釘墻構造的特點,建立了模擬復合土釘墻受力變形的計算模型,並結合工程實測資料,運大型通限元程序ababqus對復合土釘墻進行了限元分析,詳細討論了復合土釘支護結構開挖過程中的變形特性、地面沉降性狀、土釘受力性狀;土釘變化、土釘間距變化、攪拌樁樁徑變化對復合土釘支護結構的影響;復合土釘支護結構在不同地基條件下的變形特性。
  9. Using this definition, potential has the dimension of length.

    這個定義,勢具單位。
  10. We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene, stilben, thiophene as center attached with amine, diphenylamine, diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length, n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level. it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors, and that a corresponding correlation for the two - photon absorption is decreasing. it is also found that a most crucial role for the two - photon absorption is played by the n center

    我們分別以苯、二苯乙烯、噻吩為中心,氨基、二苯氨基和二乙氨基為電子給體,硝基為電子受體組合形成的分子為研究對象,在從頭計算的水平上泛函理論計算了這些分子在低激發態下的單、雙光子吸收強,重點研究了分子的、中心和給體的供電子能力對分子單、雙光子吸收的影響。研究結果表明,分子與單光子吸收強之間密切關系,而在雙光子吸收中這種關系較弱;中心在雙光子吸收中具重要的作;在中心和受體一定的情況下,增加給體的供電子能力,可提高雙光子吸收強
  11. Fits almost anywhere the mr1000 series msr is only 100mm long and can fit almost anywhere, making it ideal for pos and desktop applications

    Mr1000是美國( logiccontrols )最新產品,此產品列幾乎適合安裝于任何地方使100mm 。
  12. Both of forward and back bearings have been integrated into one box to make full use of the length of base frame that the motor formerly mounted on, and short the shaft extended lengths in both end with the strengthening connection between bearing housing and screw thread of base

    將前後兩支承設計為一個整體軸承座,充分利原電動機安裝底座的,最大限地縮短了軸的懸伸量,提高了軸承座與底座的螺紋聯接強
  13. Furthermore, we own a section of special - used railway line of 0. 864km with an available length of 400m as well as 48 platform cargo spaces. additional, the company is equipped with 3 sets of forklifts, crane trucks, and shaoxian cranes each, 8 belt - conveyers of all specifications

    高溫保鮮冷庫四棟1250平方米設一條0 . 864km的鐵路專線,效使400m ,站臺貨位48個,叉車汽車吊少先吊各3臺,各種規格皮帶運輸機8臺。
  14. The influence of msfvw bandwidth on the diffraction efficiency is also considered. for the nonuniform bias magnetic field of u - type parabola profile, when the msw frequency is less than the cut - off frequency at the edge of mo film, the effective mo interaction length reduces. the edge cut - off frequency is determined by the maximum of the nonuniform field

    對于拋物型分佈(開口向上)的偏置磁場,當激發靜磁波的rf頻率小於邊緣截止頻率時,磁光作減小(與靜磁波頻率關) ;邊緣截止頻率由不均勻磁場的最大值決定,靜磁波的下限截止頻率由不均勻場的最小值確定。
  15. With an analysis of the influence of service frequency, the cars organization on the available length of the platform, and the influence of the station, the circumstance control system, as well as the equipment on the scales of station, the author agrues that the station scale shall be reduced by way of increasing the service frequency, cutting down the length of the platform, compressing the structural height of the station, so as to reach the goal of rational distribution of the auxiliary establishments

    摘要通過分析發車頻率及列車編組對站臺的影響,以及車站結構型式、環控系統制式的選取和車站設施的布置對于車站面積的影響,初步探討了縮小車站規模的方法和途徑:提高發車頻率,以縮短站臺;選擇合理的車站層數來壓縮車站的高;從環控系統的選取以及各種設施房的合理布置上來減少車站房面積。
  16. These methods are following : ( 1 ) in order to build fem model conveniently and enhance calculating speed, interceped a finite length and built a 2d - symmetry model. ( 2 ) in order to apply loads conveniently, kept the entrance of cold fluid. ( 3 ) in order to obtain numerical results in steady situation, lengthened export and import ends

    這些方法主要: ( 1 )為了便於建立模型並提高計算速,對于實際工程中採徑比特別大的換熱管採取截取的方法並建立二維對稱簡化模型; ( 2 )提出採取保留冷流體入口端,截取的方法施加載荷; ( 3 )適當延翅片管的出口端和入口端,以便獲得穩定工況的數值解。
  17. This article presents a mathematical calculation model of kinematic parameters for the unusual shape beam pumping unit by analyzing its geometry relationship and kinematic characteristics

    異形游梁式抽油機的游梁后臂隨曲柄轉角而變化,故無法利常規游梁式抽油機的解析方法來計算其運動參數。
  18. Meanwhile, a synchronous signal is generated to be the start signal of the high speed snapshot. in this case, the effective length of the film is increased enormously, which means that the resolution of the camera may be improved at the same rotating speed

    而且在測速的同時產生了一個高精的同步信號作為高速攝影的觸發信號源,使得於記錄信息的膠片的效使得到了很大的提高,這就意味著轉鏡相機的時間解析在相同的轉速下得到了提高。
  19. The total length of our special - used railway is 0. 864km including 400m s available length

    一條0 . 864km的鐵路專線,效使400m 。
  20. Triple des usually abbreviated 3des or des3 uses the same algorithm as des, but increases the algorithm s security by employing longer keys of up to 192 bits 168 bits of effective length once the " parity " bits are removed and iterative calls of the des algorithm

    Triple des (常簡稱為3des或des3 )使與des相同的演算法,但是通過採的多達192位(除去每個位元組的1個「奇偶」位,實際為168位) ,並重復調des演算法,增強了演算法的安全性。
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