正常下降率 的英文怎麼說
中文拼音 [zhēngchángxiàjiànglǜ]
正常下降率
英文
normal descending rate-
This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time
該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。Lapse rate - the rate at which the temperature falls with altitude gain. a healthy lapse rate indicates an unstable day with good potential for soaring flights
溫度梯度空氣溫度隨海拔高度增加而下降的固定比率。一個正常的溫度梯度表現，暗示一個不穩定大氣條件，有令人滿意盤旋飛翔可能。Increasing ultrasound intensity in the range of cavitation threshold and cavitation peak value, decreasing monomer concentration and increasing the temperature make the induction period shorter. under optimized reaction conditions, the conversion of ba can reach 90 % in 11 min at high n2 flow rate the viscosity average molecular weight of the obtained pba reaches 5. 24 106. the molecular weight of pba varies with ultrasonic irradiation time, indicating that the ultrasonic induced emulsion polymerization is dynamic and quite complicated, polymerization of monomer as well as degradation of polymer occurs concomitantly
一、實現了無常規化學引發劑存在下的超聲輻照引發丙烯酸正丁酯（ ba ）間歇乳液聚合，制備了pba納米粒子，在11min內轉化率達到90 ，分子量達5 . 24 10 ~ 6 ，隨反應時間的延長而降低，表明超聲輻照引發乳液聚合是一個動態的復雜過程，單體的聚合和聚合物的降解同時發生。According to pump performance curve shown we can get that the distance h is changed with the rotate speed n in the same point q, and the flux q is changed with the rotate speed n in the same point h. from the curve we can get the rule that the distance and rotate speed are in direct with ratio at the same flux point, and the rotate speed and the flux are also in direct with ratio at the same distance point
根據相似定律：流量與轉速的一次方成正比；揚程與轉速的二次方成正比；功率與轉速的三次方成正比。即在降低轉速，調低水泵出水揚程的同時，功率下降的幅度非常大，從中可以節省相當大的電能。完全應在高水位時降低水泵機組轉速，從而使電機的輸出功率隨著轉速下降值與轉速原值商的三次方關系下降。Data used in this work are north pacific ssta, 160 stations precipitation of china, and ncep reanalysis data. main results are as follow : ( 1 ) it is found that a apparent transition of north pacific ssta in later 1970 ' s : eastern and middle - equatorial pacific ssta turns from cold to warm with area extending, and mid - latitude pacific ( west wind drift zone ) turns from warm to cold. during this transition of ssta, different characters also appear in el nino and la nina : before 1976, la nina happens more frequently, and its duration is longer, el nino zone develops from negative ssta in the early stage ; after 1976, el nino happens a little bit frequent and longer with more intensity than before, el nino zone develops from positive ssta in the early stage ; the course of ssta variation has an enso cycle of 2 - 6 years, annual oscillation of 8 - 9 years, and decadal variation of about 22 years
本文採用1950 - 1999年北太平洋海表溫度（ sst ） 、中國160站夏季降水和ncep再分析的歐亞500hpa高度場等資料，利用eof 、 svd 、小波分析、合成分析和相關分析等方法，在分析北太平洋海溫時空分佈特徵的基礎上，著重探討了海溫異常及其年代際變化對我國東部降水的影響，並對降水、高度場和海溫三者之間的關系進行了分析，以試圖尋找三者異常之間可能的聯系，主要結論如下： （ 1 ） 1976年前後，北太平洋海溫經歷了一次明顯的轉變，赤道中、東太平洋厄爾尼諾海區由冷轉暖，暖水范圍增大，中緯度西風漂流區海溫由暖轉冷；在這樣的年代際背景下，厄爾尼諾、拉尼娜事件在不同的時期也有不同的特徵：在76年前，拉尼娜事件發生頻率高，持續時間長，事件起始於負海溫距平；而76年後，則是厄爾尼諾事件發生頻率略高，持續時間長，強度增大，事件起始於正海溫距平。However, excessive tax competition may weaken the effectiveness of the tax incentives, hence incuring welfare loss ; ( ii ) in a non - cooperation tax competition equilibrium, it turns out that tax rates are set too low to fiance an efficient level of public expenditure, especially lowers the provision of the public goods benefiting residents ; ( iii ) competition for capital means the revenue from capital income taxation declines. in order to maintain the necessary public expenditure, the government would shift tax burden towards the more immobile labor, which may arouse the inequity issues on redistribution. chapter 3 : " the strategy of international tax competition and optimal capital taxation.
但過度的稅收競爭反而會減弱稅收激勵政策的有效性，降低一國福利水平；其二，在非合作均衡狀態下，國際稅收競爭使所有國家的資本課稅都維持在缺乏效率的低稅率狀態，從而不能獲取足夠的財政收入，導致公共產品提供不足；其三，旨在吸引資本流入的稅收競爭，普遍降低了對資本所得的課稅，但政府為了獲取足夠的財政收入以維持正常的支出，會將本來由資本承擔的一部分稅負轉移到流動性較弱的勞動力身上。The precipitation in middle and lower reaches of yangtze river response to the positive abnormal in eurasian continent and it also has the relationship with the interannual variability of the middle and high latitude of north atlantic sst and the west pacific warm pool
長江中下游降水對應于歐亞大陸的位勢高度正異常，長江中下游降水與北大西洋中高緯度和西太平洋暖池sst的年代際變率有關。Melatonin has a simple chemical structure, but it plays a decisive role in bodily functions, monitoring the work of the glands and organs, and regulating hormone production. it also controls over - stimulation of the sympathetic nerves to lower blood pressure and slow the heart rate, thus reducing the impact on the heart. it also alleviates mental stress, improves sleep, adjusts the body s biological clock, relieves jet lag, strengthens immunity, increases the body s resistance to germs and viruses, and prevents cancer and senile dementia
褪黑激素的化學結構非常簡單，但是在人體內卻具有舉足輕重的作用：它監視著體內各種腺體器官的運作，指揮各種荷爾蒙維持在正常的濃度它可以抑制人體交感神經的興奮性，使得血壓下降心跳速率減慢降低心臟負擔它能夠減輕精神壓力提高睡眠品質調節生物時鐘緩解時差效應，而且具有加強免疫功能抵抗細菌病毒及預防癌癥老年癡呆癥等多種疾病的功效。Then analytical measurements of the noise were carried out on both of the turbines by means of modern acoustic apparatus and a conclusion has been found that the noise of the concentrated wind energy turbine is lower than the one of the ordinary wind energy turbine and the root of the trouble to cause noise chiefly originates from the turbine blade. besides, the result of analytical measurement also reveals that the power output both of the wind energy turbines will increase with the increase of the wind speed and unfortunately does the noise too. in order to lower the noise, a measures of noise reduction have been advanced that an active method is to develop a wind energy turbine run at a lower rating of wind speed while the passive method is to adopt a board drilled tiny holes, having established a sound technological basis for the development of a kind of wind energy turbine of low noise and high level in the world
主要對濃縮風能型風力發電機在正常運轉時，噪聲產生的機理進行了理論分析研究，並與普通型風力發電機的噪聲進行了對比實驗分析；利用現代聲學測試手段對兩類機型進行測試與分析，得出濃縮風能型風力發電機產生噪聲低於普通型風力發電機和葉輪是風力發電機產生噪聲的主要部件的結論；通過對兩類機型的噪聲、輸出功率的測試，得出隨著風速的增加，兩類風力發電機的輸出功率在增加，產生的噪聲也在增加的結論；提出了進一步降低濃縮風能型風力發電機噪聲的措施，從主動降噪方面，研製低額定轉速的發電機；從被動降噪方面，採用微孔穿板的降噪結構；為研究開發一種國際上低噪聲、高水平的風力發電機打下了良好的技術基礎。By comparing the productivity and availability of the original system with those of the degraded system, it is concluded that the degradation performance mode has a higher one ; moreover, under certain conditions, the availability increases more quickly than the productivity
通過對系統正常狀態和降級狀態的有效度和生產率的比較，得出了系統存在降級運行模式時，比系統全部由關鍵設備組合的運行模式具有更高的生產率和有效度，並在一定條件下，系統有效度比生產率增加更快的兩大結論。The poor flow patterns are inclined to exist in the round sump which is not designed properly and then the inlet condition of the pump is not good, which makes the efficiency of the pump unit drop and causes vibration. if there are a lot of sediments in the water flow, the problem of sediment deposition is to be solved
圓形集水池由於其結構的特殊性，設計不當易導致池內流態紊亂、水泵吸水條件差，繼而影響水泵的正常運行，導致水泵機組效率下降、振動等，如果來水含有泥沙則易產生泥沙淤積。After recent ten years ’ progression at a very fast speed, on one hand, the amount of travel agencies, the number of tourists, and the income of travel business progressively increase year after year ; on the other hand, competition in the travel agencies is extremely intense. price war becomes more and more heated so that profit percentage goes downhill
經過近十年的飛速發展，一方面我國旅行社的數量、旅遊者人數和旅遊營業收入都逐年遞增，另一方面我國旅行社行業的競爭卻異常激烈，價格競爭愈演愈烈，行業利潤率連續下降，我國旅行社行業正在逐步成為一個低利潤的行業。This paper gives us too ways ： one is to adopt a better modulation mechanism, s - cdma, to bate noise jamming. the other way is to implement automatic frequency agility under strong noise, based on the ranging and burst configuration mechanism of current docsis protocol, meanwhile, guaranteeing cmts ' s normal operating. this paper comprehensively analyzes the anti - jamming mechanism of docsis, then presents the specific implementation of the latter method
如何降低噪聲對網路的危害，本論文指出了兩個方向，其中一個就是在調制體制上下工夫，採用s - cdma體制，通過改變調制方式來主動的抑制噪聲的影響；另一個方向就是基於現在協議提供的抗噪聲干擾的機制，充分挖掘測距機制和靈活的突發配置機制的抗干擾潛力，以不影響頭端設備的正常運行為前提，以它們為基礎實現能自動避開強噪聲干擾的頻率轉移。Output window is the core of the gyrotron, which speciality can decide the speciality of the gyrotron greatly. the major subjects of output window design for high power gyrotron are to reduce the reflection and absorption power in order to enhance the gyrotron ’ s stability and protect the output window
如果窗片的反射升高，在高功率情況下返回到高頻系統的功率將顯著上升，引起寄生模式在高頻系統中自激振蕩，從而降低迴旋管的高頻輸出功率和模式純度，乃至於使迴旋管不能正常穩定工作。分享友人