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词汇
protective gas
释义
protective gas
基本
例句
保护气体
The PQR shall include the composition and flow rate of the shielding and inert gas backing, when used.
焊接工艺评定记录单上应包括封底焊时所用的惰性保护气体组成成分和流率。
随便看
line-perforating machine
line-perforating machine, cutting machine
line performance
line per inch
line period
line per minute
line per minutelpm
line permutation
line perpendicularity picking peak construction
line personnel
line personnels
line perspective
line phase
line phone
line photogrammetry
line photograph
line photography
line-picking duplicators
line pilot
line pilot alarm
line pilot protection
line pin
linepipe
Linepipe
line pipe
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更新时间：2026/6/25 13:26:59