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to phrases
lubricating oil test for tightness
avia.
润滑油密封试验
nautic., tech.
润滑油密性试验
oil.proc.
润滑油密封性能试验
tech.
润滑油油密性试验
lubricating oil test for tightness
:
2 phrases
in 1 subject
Earth sciences
2
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