The engine, as it cooled itself, sucked in air through the outlet hose, producing suction in the vacuum chamber, and so drawing the plunger down and compressing the spring.
当引擎冷却时，通过出口软管吸入空气，在真空管产生吸气，导致柱塞向下挤压弹簧。
2
Upward motion of the buoy causes a suction which lifts the balls, thus allowing air to be drawn back down the counterweight tube.
浮标的向上运动则产生吸力，可将阀球提起，这样可允许气流受力并返回至配重管。
3
Those parameters included pull down speed and power consumption of the refrigerator, temperature of cold storage chamber, freezing chamber, condenser, suction and discharge pipes of compressor, etc.