The engine was crawling with vacuum lines and sensor wires, and Nick's confidence had fallen to the point of sending me to Caldor for a Polaroid camera.

那辆车的发动机周围布满真空管路和传感器电线，尼克的自信心已经下降到了派我去商店买个立拍得相机的程度。

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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。

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The piezoelectric sensors can also be used to measure the internal combustion engine measure pressure and vacuum measurement.

压电式变送器也可以用来测量发动机内部燃烧压力的测量与真空度的测量。

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The locomotive is being refitted with vacuum brakes to enable it to tow the steam engine and carriages.

BBC: Steam train to return to London Underground

The Vulcain engine as you know is ignited on the ground, but on Liberty it would need to ignite in the vacuum of space.

BBC: New rocket could lift astronauts