Existing residual air pressure after disconnecting the air compressor from the machine has to be expelled.

如有残留压缩空气时，应放掉压缩空气。

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If the residual air in cylinder is impacted by abrupt clamp pressure the seal ring will be damaged due to the effect of diesel oil.

如果油缸内残留空气受急剧夹压时，那么，由于液压油的作用，有可能使密封圈烧损。

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Histologically, the tumor showed irregular growth pattern with interstitial fibrous proliferation and intra-tumoral residual air-containing Spaces in alveoli and bronchioles.

其病理基础为癌瘤外侵和间质纤维组织增生，肿瘤内残存正常肺组织和支气管。

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It was pushed to this height recently to take it clear of residual air molecules at the top of the atmosphere that tend to drag it downwards over time.

BBC: International Space Station in debris scare

Residual air molecules more than 200km above the planet will generate drag on the probe and pull it down faster and faster - although it could be some weeks yet before there is an impact.

BBC: Stricken Mars probe stays silent

The engine constantly throttles up and down, not only to counter the drag on the satellite from residual air molecules in near space but also to smooth the flight of the vehicle to minimise the noise in the gravity measurements.

BBC: Goce gravity mapper surfs atmosphere