water column pressure 中文意思是什麼
water column pressure
解釋
水柱壓力-
In the summer stratified water column, the deeper the maximum depth of food distribution is, the stronger the dvm is performed ; the increase of the gradient of temperature in the thermocline layer can decrease the magnitude of the dvm and form the thermal barricade to the copepod ; the effects of the predation pressure on dvm is complex. on the one hand, the variations in the distribution depth of the predation pressure vs. the thermocline layer or the depth of the maximum food can modify the dvm patterns of the copepod. on the other hand, different predation pressure induces different dvm patterns
在夏季分層水體中，食物的最大分佈深度越大，動物向下遷移的幅度也越大；溫躍層的溫度梯度增大可以減小動物遷移的幅度，成為橈足類垂直遷移的溫度屏障；捕食壓力對垂直遷移的影響較復雜，一方面，捕食壓力的分佈深度與溫躍層或食物峰值的相對位置的變化能夠改變橈足類垂直遷移的模式，另一方面，捕食壓力強度不同，橈足類垂直遷移的幅度也不同，捕食壓力越大，遷移的幅度越大，當捕食壓力增加到一定程度，橈足類停止向上的遷移，大部分時間呆在水體深層，可能進入捕食壓力引起的「滯育」狀態。 -
Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled
（ 2 ）利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究，通過分析正弦荷載作用下的試驗資料，驗證了粉土的孔隙水壓力增長模式的合理性；從微分方程推導了基於土體振動臺模型試驗的相似律，並從模型實體、孔壓時程曲線和相似律等方面做出了分析，得出了如下結論：在小型振動臺試驗中，模型箱中的粉土都發生了液化，液化的時刻和輸入加速度幅值有關，而對頻率的變化不太敏感；粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化；孔壓的增長曲線形狀與施加的荷載有關：當施加荷載為由小到大的形式時，曲線形狀為上凹的曲線；當施加荷載為等幅的正弦荷載或荷載幅值由大到小時，曲線形狀為上凸的曲線，且逐漸趨于穩定。 -
Foshan gold zhujiang mechanical electrical equipment co., ltd foshan gold zhujiang hydraulic pressing machinery is an enterprise specialized in manufacturing hydraulic machinery and relevant molds. holding the spirit of keeping improving and keeping pace with the time, we have manufactured sdz series super high pressure cutting machine water cutter y - type various 4 - column single, double action hydraulic presser and full automatic hydraulic presser can be chose in various industries various molds for hydraulic machine filter for 15000kw large internal combustion generator etc
多年以來，我司員工本著精益求精，與日俱進的精神，製造了sdz系列超高壓水射流切割機水刀y型各類四柱單雙動及全自動油壓機共有多個系列適合不同行業選用各類油壓機使用的模具15000kw大型內燃發電機用的濾清器等產品。 -
Research on water hammer with gas in pressure conduit system through physical experiments, researches on pressure conduit system with gas releasing and liquid column separating, which consist of observing flow patterns, testing the conditions under which liquid column separation brings into existence and the water hammer in water interception collision, and studying effects resulting from gas content and different water velocities in pipeline, was done
3 、輸水管道系統中含氣水錘研究通過物理試驗，對有壓輸水管道系統中的氣體釋放與液柱分離進行了研究，觀察其流態、測試液柱分離發生的條件及斷流彌合水錘壓力，研究了含氣量、流速等參數對液柱分離的影響。 -
Combining physical experiments and theoretical analysis, this literature has performed thorough research on gas properties of delivery pipeline system, pressure current rush to interception air - mass in pressure pipeline, water hammer with gas that happens with gas releasing and liquid column separating
本論文通過物理試驗與理論分析對輸水管道系統中的氣體特性、壓力水流沖擊截留氣團和包含氣體釋放和液柱分離現象的含氣水錘進行了深入研究。 -
Abstract : based on the three aspects of the dry - vibrated gravel column, compaction, seismic reducing and drainage, the pore water pressure of foundation for the expressway treated by the dry - vibrated gravel column has been calculated
文摘:在全面考慮干振碎石樁擠密、減震、排水3種作用的基礎上，分析了干振碎石樁對高速公路液化地基處理后，復合地基中的孔隙水壓力分佈情況。 -
The mathematical analysis shows that, with disregarding local head losses and by means of different simplified rigid models, the calculated results of the maximum pressure in a pressurized pipe system containing trapped air mass are equal to and independent of the initial length of the water - column
摘要通過數學分析證明，在不計局部水頭損失時，目前常用的幾種簡化剛性數學模型的最大氣壓計算結果相等，並與管道內初始充水段長度無關。
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