pressure trough 中文意思是什麼
pressure trough
解釋
氣壓槽谷-
Effect of si an capsule combined enalapril on hypertensive trough peak ratio and circadian rhythm of blood pressure in patients with essential hypertension
四安膠囊合用依那普利對高血壓病患者降壓谷峰比及24小時節律的影響 -
Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle
流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。 -
Weather information for south china coastal waters weather situation : a trough of low pressure is bringing thundery showers to the south china coastal waters
香港天文臺在2007年04月23日19時30分發出之天氣報告天氣概況：一道低壓槽正為華南沿岸海域帶來雷雨。 -
The diagnostic analysis for the sandstorm process on the base of height, temperature, pressure and wind etc output from the model shows that the upper cold trough, low - level wind shear, surface cold anticyclonic ridge, mesoscale cyclone and cold front are the main synoptic systems, surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather, the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen, moreover, and it increases obviously the temperature of the controlled area, as a result, the updraft movement caused by convergence before front strengthens
500hpa強鋒區、 700hpa切變和鋒前中尺度系統的強弱及位置變化是沙塵暴天氣發生發展到減弱的直接原因。地面冷高壓、地面氣旋及冷鋒是造成本次沙塵暴天氣的主要地面天氣系統。地面冷高壓及冷鋒為沙塵暴天氣的發生提供了風力條件，而中尺度氣旋使冷鋒前後氣壓梯度明顯增強外，又使所控制的區域增溫明顯，使鋒前輻合上升運動加強，為沙塵暴天氣的發生提供了熱、動力條件。 -
The main relative systems of heavy - hard rainfall in northeast plateau are western pacific subtropical high, south asia high, low latitude systems, upper level jet ( ulj ), low level greater wind speed axes, westerly trough and plateau trough, low level vortex, cold frontal, occluded front in qinghai lake, mesoscale low pressure, heat low - pressure in qinghai, shear line and convergence line, mesoscale cloud cluster, etc. the west subsidiary model of south asia high is the main circulation type of heavy - hard rainfall in this area
3 、西太平洋副高、南亞高壓、低緯系統、高空急流、低空大風速軸；西風槽和高原槽、低渦、冷鋒、青海湖錮囚鋒以及中尺度低壓、青海熱低壓、切變線與輻合線、中尺度雲團等系統是高原東北部地區大到暴雨的主要相關系統。 100hpa上的南亞高壓中心強度加強，位置東西擺動預示高原地區將有降水產生，中心強度減弱，降水過程結束。南亞高壓西部副型是高原東北部地區大到暴雨的主要流型。 -
A trough is an area of low pressure where air from higher pressure converges and is forced to lift upwards to form thunderstorms
槽是氣壓較四周為低的地區，空氣會由高氣壓區流向低氣壓區而匯聚于低壓槽，最後被迫向上升，造成雷雨。 -
The results show that the weather process occurs because of typhoon trough with cold air, deep upper trough ; the southeast low - jet by typhoon transported large water vapour and great energy of instability to heavy rainfaill area ; cold air, lower convergence and upper divergence by deep upper trough lead to development of the east - ocean low pressure and occurd strong wind
分析結果表明：這次天氣過程是由臺風倒槽和冷空氣及深厚的高空槽共同作用引起的；臺風環流引起的東南低空急流為暴雨區輸送了大量的水汽和不穩定能量；冷空氣的侵入加上深厚的高空槽引起的低空輻合、中高層輻散，促使了東海低壓的劇烈發展，產生了猛烈的大風。 -
In the wave trough of the pressure curve, the pressure may be then if the rocket is accelerating or if it has assembling defects, the early explosion of the grenade on the ballistic may be caused
該模型的微分方程計算結果表明微小彈簧在彈道上的振動過程會使導電桿的受壓產生周期性變化，尤其是在一些波谷處，導電桿幾乎不受壓力，此時如果有火箭加速和其它裝配缺陷等因素的影響，就會引起彈丸在彈道上的早炸。 -
A trough of low pressure will bring rainy weather to southern china in the next couple of days
一道低壓槽會在未來一兩日為華南帶來有雨的天氣。 -
Synopsis of the weather situation : a trough of low pressure is bringing rainy weather to the south china coastal areas
Ii .天氣概況：一道低壓槽為華南沿岸地區帶來有雨的天氣。 -
The pressure there is lower than that at neighbouring points on either side of the trough line
槽線上的氣壓會較其兩旁氣壓為低。 -
In this way, when obturation cubage leave absorb oil cavity it connects the eduction oil cavity with the v trough and with the increasing of the turning angle, the size of the cross section of v trough become bigger and bigger, which make the pressure between the cavity of two blades much higher and higher, and until it completely connects the eduction oil cavity, it reaches the pressure of the eduction, and it can effectively reduces the fluid noise caused by high pressure return flow
這樣，當密閉容積離開吸油窗口之後，通過v型尖槽逐漸與排油窗口連通，隨著轉角的增加， v型尖槽通流截面積逐漸增大，這就使兩葉片間容腔內的壓力逐漸升高，直至完全接通排油窗口時，才升壓達到壓油腔的壓力，這樣可以有效地降低因高壓迴流而引起的流體噪聲。 -
Then we set up the model of rectangle - shape pipeline. we compare it to circuit - shape pipeline on sides of the value of induced electromotive force, pressure loss when liquid flow trough the pipeline and resistance ' s value of the sensor. we get the result that we can finish the measurement of low - velocity flow by using the rectangle - shape pipeline
接著對矩形測量導管進行建模，並在流體流經矩形測量導管時產生感應電動勢的大小、流體在測量導管中的壓力損失和傳感器內阻的大小對輸出信號的影響等幾個方面與圓形測量導管進行比較后得出採用矩形測量導管完全能夠有效地完成微流量的測量。 -
Using multiple side cone into a pulp and stainless steel pressure trough net - net - cage
採用方錐多管進漿，壓力網槽不銹鋼片式網籠。 -
In may, several hosts of radio programmes took themselves off the air one after another and many people are of the view that hong kong is currently under a trough of political low pressure
在５月，數位電臺節目主持人又相繼封咪，不少人認為一股政治低氣壓正籠罩?香港。 -
An active trough of low pressure brought heavy rain to the territory on 2 and 3 may
一道活躍低壓槽於五月二日至三日為香港帶來大雨。 -
An active trough of low pressure over the south china coast brought heavy rain and squally thunderstorms to hong kong today ( friday, 9 august 2002 )
位於華南沿岸的一道活躍低壓槽今天（ 2002年8月9日，星期五）為本港帶來大雨。 -
He trough of low pressure over the south china coast continued to bring heavy rain and thunderstorms to hong kong today ( wednesday, 11 june 2003 )
位於華南沿岸的一道活躍低壓槽今日（ 2003年6月11日星期三）繼續為本港帶來大雨及雷暴。 -
Heavy rain and severe thunderstorms affected hong kong in the small hours of 3 april 2000 when an active trough of low pressure swept across the coast of guangdong
二零零零年四月三日凌晨，一度活躍低壓槽橫過廣東沿岸，令香港受到大雨及雷暴影響。 -
Echoes captured by the hong kong observatory weather radar at 6 : 18 a. m. on 4 june 1997 when heavy rain associated with an active trough of low pressure was affecting hong kong
天文臺氣象雷達於一九九七年六月四日上午六時十八分錄得的雷達回波圖像，當時香港正受一道活躍低壓槽影響而下著大雨。
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