单词	welding trace
释义	welding trace 焊接轨迹
随便看	standard colorimetric tube standard color match function standard color-mixture curves standard color noise signal standard colors standard color sample standard color scale standard color solution standard color test pattern standard colour standard colour chart standard colours standard colour scale standard colo u r scale standard colour spectra standard colour tone standard column standard column of water standard column width standard combined steel form standard combustion material standard combustion room standard command standard commands standard commands for programmable instruments