On an inner sleeve, a gravity ball blocking seat (24) are arranged.
内套上有重力弹丸塞座（24）。
Gravity ball check may be converted for air or gas venting by replacement of standard ball with floater PP ball.
通过用漂浮的PP球更换标准球，重力球形止回阀可以改造为适用于空气或气体排气口。
Gravity ball check valves are converted to vent valves by replacing the standard ball with a floater ball and inverting the valve at installation-with seat up.
重力球形止回阀可以变为通风阀，只需用漂浮球体更换标准球体，然后在安装时将阀门倒置，使其阀座向上即可。
All the gravity of all the mass in the cosmos should have been pulling the universe back inward, just as gravity pulls a ball back down to Earth after it's been thrown into the air.
宇宙中每一物体的每个引力都会对宇宙产生一个指向物体本身的拉力，就像在重力作用下，抛向空中的球会被拉回地面。
There is therefore an optimum place to hit the ball if you want maximum spin: if you hit the ball too close or too far from the centre of gravity, it will not acquire any spin at all.
因此，如果你想获得最佳转速，这里有个最优的踢球部位：如果你的踢球部位距离重心太近或太远，足球将不会旋转。
As they pass through, they trace out an arc, just like a thrown ball falling due to gravity.
当中子穿越平板时，它们划出一道弧线，就像投出一个小球一样。
Because gravity is a constant, experienced quarterbacks and kickers can account for its effects to move the ball downfield as efficiently as possible.
因为重力是常数，经验丰富的中卫和前锋可以算出重力的影响，尽可能迅速的把球传到前场。
So what now is the distance - between the monkey and the golf ball-- - the distance between the two trajectories-- one trajectory, no gravity;the other with gravity?
那么猴子和球之间的距离,是多少-,两条轨迹间的距离-,一条轨迹忽略重力，另一条则相反？
To state the restoring force of a simple pendulum during oscillation is the resultant force of the gravity of the ball and the pulling force of the thread is wrong .
常出现一些模糊认识，即认为单摆在振动中所受的回复力就是摆球所受重力与绳子拉力的合力，显然，这是错误的。
When you pick up a book or a ball, you are using more force than the force of the earth's gravity.
你捡起一本书或一个球时，你使用的力，比地球的引力大。
Because ordinary pens rely on gravity, while you write, gravity forces the ink down onto the ball, which rolls inside its socket and spreads the ink on your writing surface.
因为普通圆珠笔在有重力的情况下方可工作。主要是重力作用油墨，使圆珠在球座内滚动，带出笔芯内的油墨或墨水，以达到书写的目的。
He is only 170cm but rugged and is willing to chase the ball down and run the channels, his low centre of gravity and deceiving pace allows marking difficult for opposition defenders.
他只有170公分但身体条件出色，擅长边路突破。他带球时重心低，不停通过变速跑迷惑对手，使对方防守球员盯防困难。
It is suggested to apply the principle of effective gravity and equivalent pressure head to calculate the rotational speed and ingate area in the processing of grinding ball by centrifugal casting.
在离心铸球工艺中，可应用有效重度和等效压头原理计算转速和内浇口断面积。
At the same time, the machining error caused by the gravity bending of the ball screw is...
同时简要分析了在加工精密工件时，由于自重原因引起丝杠弯曲导致的加工工件的误差。
At the same time the processing error of the workpiece caused by the bending of the ball screw for the gravity force was analyzed when the workpiece is...
同时在加工精密工件时，就自重原因引起丝杠弯曲导致的加工工件的误差进行了分析。
At the same time the processing error of the workpiece caused by the bending of the ball screw for the gravity force was analyzed when the workpiece is...
同时在加工精密工件时，就自重原因引起丝杠弯曲导致的加工工件的误差进行了分析。
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