pressure head 中文意思是什麼
pressure head
解釋
承壓水位-
Artesian pressure head
自流水水壓頭 -
A silicone oil bubbler provides a positive gas pressure head inside the growth tube at all times.
硅酮油起泡器能始終在生長管內產生一正氣壓位差。 -
This paper deriving the theory work inflection point in the static stage characteristics curve of small measurement range linear dimension measurement. by the way of high pressure and back pressure pneumatic measure and designed the parameter of the mainly and measure spray head, which are the key component in the spray head - baffle pneumatic sensor. the different groups for the main - spray head and the measure spray head, will effect the dynamic and static stage characteristic parameter. the author have done contrast experiment and optimization design to test and verify the theory derivation whereby made the rang of show valve of pneumatic measure system measure range up to 40 u m, the sensitivity up to 100mv / u m, resolution up to 0. 05 p m, the uncertainly of measure is less than 0. o2 u m, satisfaction of requirement of groups the carboy hatch thickness size precise measure of soft shims
對高壓背壓式氣動測量用於小量程線性尺寸測量的靜態特性曲線的理論工作拐點進行了推導，對氣動測量系統中的噴嘴-擋板型氣動傳感器中的關鍵部件? ?主噴嘴和測量噴嘴的參數進行了理論設計，對主噴嘴和測量噴嘴的不同組合，將影響測量系統靜、動態特性指標的噴嘴參數進行了對比實驗和優化設計，並通過實驗驗證了理論推導，從而使氣動測量系統量程的示值范圍達到40 m ，靈敏度達到100mv m ，解析度達到0 . 05 m ，測量不確定度小於0 . 2 m ，滿足了壓縮機缸蓋軟體墊片厚度尺寸精密測量分組的要求。 -
It is indicated that, when a two - speed motor is used for driving oil transfer pump, the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance, and its speed control range is restricted by the pipeline resistance characteristic curve, the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel, the pump with better performance should be changed into speed - variable pump
指出雙速電動機用於輸油泵的調速時，應選用轉矩按轉速平方降低特性的電動機；調速泵的運行經濟性受到管路阻力特性曲線的限制，其調速范圍受到管路阻力特性曲線、系統所需揚程和泵運行特性的限制；在母管制系統中把部分定速泵改為調速泵時，應將性能較高的定速泵改為調速泵。 -
Standard test method for water penetration of metal roof panel systems by static water pressure head
通過靜水壓頭測試金屬屋頂格間水滲透性的標準試驗方法 -
The hydraulic analysis of pump for suction penetration of bucket foundation as well as the pressure head relation between bucket cavity and pump inlet for different water depths and different pump mounting heights are described in this paper
對桶形基礎平臺負壓沉貫過程中汲水泵機進行了初步水力分析，討論了不同水深、不同泵機安裝高度情況下，桶腔和泵機進口之間的壓頭關系。 -
Air pressure head
空氣壓頭 -
Based on the principle of hydraulics, the general equation for head loss and the formula for calculation of pressure head along the flexible hoses were worked out, and the method for determination of the maximum and minimum heads and their positions was given
摘要根據水力學原理建立了軟管沿程水頭損失的一般方程，得出了軟管沿程壓力水頭的計算公式，給出了確定最大和最小壓力水頭位置及大小的方法，從計算結果與試驗實測結果的對比看，具有一定的合理性。 -
The dall flow tube is an empirical design with an extremely high pressure head recovery.
Dall流量管是具有特別高的壓頭補償的實驗裝置。 -
The dall flow tube is an empirical design with an extremely high pressure head recovery
Dall流量管是具有特別高的壓頭補償的實驗裝置。 -
Available pressure head
有效水壓頭 -
The following contents are included : ( 1 ) based on the fundamental seepage theory, the basic differential equation of saturated - unsaturated seepage in porous mediums has been deduced, in which the pressure head is the fundamental unknown quantity. furthermore, the equation for rcc dam is deduced too
主要內容包括： （ 1 ）從滲流基本理論出發，以壓力水頭為基本未知量推導多孔介質三維飽和非飽和滲流微分方程，並根據碾壓混凝土壩的特點得出適合其自身的滲流控制方程：進而對碾壓混凝土的滲流基本理論、滲流特性開展深入的研究工作。 -
With three engineering examples, analyses the underheated problem because of deficiency of the pressure head and flow rate, and presents an effective solution to the problem
摘要結合三個實例分析了供熱管網末端用戶因壓頭和流量不足而導致的不熱問題，提出了切實可行的解決方法。 -
The primary contents are as follows : ( 1 ) based on the fundamental seepage physical equation, the basic differential equation of saturated - unsaturated seepage in porous mediums has been deduced, in which the pressure head is the fundamental unknown quantity. a calculated model for analysis of saturated - unsaturated seepage field with the boundary condition of rain infiltration also has been developed
總體說來，本文主要從以下幾個方面開展了研究： （ 1 ）由基本滲流物理方程出發，以壓力水頭為基本未知量推導多孔介質三維飽和?非飽和滲流微分方程，在此基礎上分析了邊坡在有降雨入滲條件下滲流的定解條件和計算模型。 -
It is frequently referred to as "pressure head" when expressed in terms of energy per unit weight of water.
當以單位水重的能量來表達時，經常看作為「壓頭」。 -
It is frequently referred to as " pressure head " when expressed in terms of energy per unit weight of water
當以單位水重的能量來表達時，經常看作為「壓頭」 。 -
It is composed of open type engine body, hydraulic power cylinder, upper pressure head, and lower type box. the type box can be collocated with manual four - positions renewal
有開式機身、液壓動力缸、上壓頭、下字盒等組成。下字盒可配手動四位根據用戶要求更換。 -
Based on the head loss coefficients obtained from gardel ' s semi - empirical equations for t - junction flow and experiment of welded t - junction, the hydraulic characteristics of throttled surge tank are estimated and compared with those gotten from hydraulic experiment. 3. four different methods of determining the head loss coefficients of throttled surge tank have been employed to investigate the effect of methods afore mentioned on the accuracy of calculating surge and pressure head of throttled surge tank
給出了基於gardel關於三通管水頭損失系數的經驗公式、焊接t形三通管水頭損失系數的實驗資料及截面突變管道的水頭損失資料，計算有連接管的阻抗式調壓室在不同流態下水頭損失系數的計算方法，並將這兩種方法計算得到的調壓室局部水頭損失系數分別與模型試驗成果進行了比較和分析； 3 -
Atmospheric pressure head
大氣壓力冒口 -
Loss of pressure head
壓頭損失
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