pressure-altitude variation

Three new methods, which are the parameters of the aquifer, the tide effect and barometric pressure effect in aquifer, inverting the variation of stress and strain in the aquifer by the variation of well level have been given.

给出了利用承压井水位变化反演含水层应力变化的三种新方法：通过含水层的参数、固体潮效应以及气压效应反演水井含水层的应力变化。

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Pad pressure controller enables user to calibrate the variation of pressure as pad wears down.

垫子变薄时,使用者能够通过垫子压力控制器校准压力.

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In the Quaternary formation and Upper-Tertiary formation of Yinggehai Basin, except for abnormal pressure and compaction, there are mainly four factors affecting acoustic time, which are lithology variation, cementation, gas in the formation and crack.

莺歌海盆地第四系和上第三系地层内除异常压力和压实作用外，影响声波时差的因素主要有岩性变化、成岩胶结作用、地层含天然气及裂缝的存在。

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The wave of pressure and variation of pressure ratio are analyzed specifically.

重点分析了制冷机内的压力波形,压比变化.

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The numerical results indicate that whether there exists a thermal pressure in the courtyard, there is almost no variation of natural ventilation of the windward side rooms.

数值模拟结果表明，无论有无热压作用，庭院式建筑迎风面的房间透风效果变化都不大；

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The details are summarized as follows: Firstly, the trait of pressure variation and reaction character of ScCO_2-alkali metal system during the reaction process was studied.

研究了反应过程中超临界CO2-碱金属体系的压力变化特点及反应特征。

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Research on variation of thermal pressure along Hugoniot of solids

固体Hugoniot线上热压变化的研究

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For the same fabric, the higher pressure of the socks, the larger amplitude of variation of the pressure values, and then the pressure variation of the the cotton top part of socks is larger than those of nylon.

在压力值较大的位置，当袜口面料相同时，压力越大的短袜在行走过程中的压力变化幅度越大。对于棉和锦纶两种面料，棉袜口压力变化幅度要大于锦纶袜口。

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The variation of voltage can reflect the variation of the system's differential pressure Δ p, and according to the relation of Δ p and s, on-line pneumatic measurement become ture.

电压的变化反映了系统压差Δp的变化，根据Δp与s一一对应的关系，即可实现在线的气动检测。

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By strict mathematical deduction, it is being proven that the influence of steam extraction pressure loss on a unit's thermal efficiency is equivalent to the linear superposed effects on efficiency, caused by relevant heaters' out flowing feed and drain water enthalpy variation.

经过严格的数学推导，证明了抽汽压损对热经济性的影响等同于抽汽压损引起的加热器出口水焓和疏水焓变化对热经济性影响的线性叠加。

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