In one aspect of the invention, the fluid system includes a pump chamber and a pressure chamber.

本发明的一个方面中，流体系统包括泵腔和压力腔。

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The premise that the angular velocity of liquid in pump chamber is equal to the half of angular velocity of the impeller has not been verified yet.

泵腔内液体旋转角速度等于叶轮旋转角速度的一半，这一假设有待于进一步验证。

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The arrangement of drilling machine is divided into five areas: drilling platform, pump chamber, power supply area, solids control area and oil tank area.

钻机布置分五个区域：钻台区；泵房区；动力区；固控区；油罐区。

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After you have fired a pump-action shotgun, the only way to chamber another round is to pump it again.

NEWYORKER: A Loaded Gun

Insert a foil pack of powdered insulin into a slot, prime the pump with a lever and push a trigger that releases the cloud of insulin into a clear plastic chamber.

FORBES: Magazine Article