旋启式止回阀压降最小，能够完全自动关闭，即在介质流动停止、重力和介质倒流的状态下自动关闭阀门。
Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.
压降是超重力旋转床流体力学的重要特征之一。
The pressure drop is one of the most important characteristics in hydrodynamics of high-gravity rotating bed.
盆地流体的驱动机制包括压实驱动、重力驱动和密度(热对流)驱动三种机制，其基本特征及岩石学记录各有不同。
The drive mechanism includes three types: compaction drive, gravity drive and density (heat convection) drive. Their foundational features and lithological information are very different.
我国一些地区资源丰富，但就近水源缺乏，不得不采用长距离有压重力输水。
Some areas in China are abundant in resources, but short of water source nearby, so the pressured gravity water transportation in long distance must be adopted.
如果你向右侧做三角式，你的右腿与地面呈一个角度，这样由于重力的作用，就会很容易将右腿的膝盖拉到超伸的状态。如果你的右手用力压在小腿上，那就会将胫骨向后压。
If you are doing the pose to the right, your right leg is at an angle to the floor that makes it easy for gravity to pull the leg into hyperextension.
重力变化的主要原因是过量开采地下水，使含水系统压密，从而导致地面重力变化。
The main cause of the gravity variation is that groundwater has been over mined, thus, hydrous system is so pressed that ground gravity varies.
对含酚污水污泥重力浓缩性能的研究表明：污泥沉降属于成层沉降和压密沉降状；
The gravity thickening property of sludge from phenol contaminated wastewater was described. It showed that the sludge settling was in layered and compression settling statues.
三个带呈东拉西压模式，它是盖层沿基底发生重力滑动的产物。
The three zones display a model of extension in the east and compression in the west. This belt is the product of gravitational gliding of the covers along the basement.
在重力输水系统的规划设计中，有时采用无压管渠与压力管道相结合的方式输水。
In the planning and design of gravity water transfer system, the combined pattern of pressure free pipe and canal with pressured pipe line is sometimes adopted to carry out water transfer.
对重力有压输水系统的水锤特点进行了分析，指出末端关阀水锤是影响系统安全运行的主要问题。
It is indicated that the end valve-closure water hammer is the main problem which influencing the system safety.
给出重力与压载、液压与压载下临界压载的解析公式或简便精确的近似公式。
Analystical or simple accurate approximate formula of critical load of plunger under its weight and compressive force on the end or hydraulic pressure and compressive force on the end are provided.
蓄水后，有些重力坝坝踵压应力不是减小，反而呈明显增长。
After reservoir filling, the compression stress in a dam heel does not decrease but markedly increases for the some gravity DAMS.
沉积盆地内地质流体运动的驱动力主要有压实作用、地下水重力作用、构造作用和进入盆地中的热流。
The forces inducing basin-wide geofluids flow are principally compaction, groundwater gravity-inducing, tectonic processes acting on a basin, and introduction of heat into a basin.
沉积盆地内地质流体运动的驱动力主要有压实作用、地下水重力作用、构造作用和进入盆地中的热流。
The forces inducing basin-wide geofluids flow are principally compaction, groundwater gravity-inducing, tectonic processes acting on a basin, and introduction of heat into a basin.
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