air-tightuess

常见例句

• The special connections ensure that the system has excellent air tightness.
  特别的连接方式保证了系统优良的气密性。
• The principle of a composite test device for air-tightness of automobile compartments and air volume of air conditioners was described.
  摘要论述了客车车室气密性和车用空调风量综合试验装置的原理。
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