千斤顶：在应用力学中，指携带方便、以手操作的装置，可将重物稍微抬高，能施加巨大压力，或将装配好的对象牢固地支撑在原地。

Jack: in practical mechanics, portable hand-operated device for raising heavy weights through short distances, exerting great pressures, or holding assembled work firmly in position.

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压脚压力采用微调装置，压力调节螺钉设有刻度，更加方便操作。

Add fine adjust device for the pressure of foot, without dial on the adjustable screw, more convenience for operation.

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受侧向荷载作用的金属膜常被用作压力装置的超压防护或实现某些特定的开关操作。

Metallic membranes under lateral pressure are widely used to protect equipments from the danger of overpressure or to accomplish some particular switch operation.

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