英语词汇“protective gas”的翻译、意思、用法、释义-英汉汉英双解词典

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	velocity compensation MTD velocity compensator velocity component velocity composition law velocity compounded cycle velocity compounded impulse stage velocity-compounded impulse stage velocity compounded stage velocity-compounded stage velocity compounded turbine velocity-compounded turbine velocity compound turbine velocity-compound turbine velocity-compression cycle velocity condenser microphone velocity constancy velocity constant velocity, constant velocity constant of chemical reaction velocity constraint velocity contour velocity contourline Velocity contrast velocity control velocity control knob