tack welds 是什么意思?

tack welds 是什么意思? 英语：下面有错误吗we found some tack welds of main girder stiffener was unqualified,in the tack weld have the existence of cracks、 holes and other defects.The quality of tack weld should be like formal weld.Tack weld thickness should not l tack在tack it 如题,weld connections是什么意思?焊缝么?焊缝的话 应该是welds 吧 tack stitche是什么意思Your cuff self facing is loose.U need to add 2 more tack stitches to hold in place. Fillet Welds怎么翻译? Groove Welds怎么翻译? `Tack off your 【 急 】tack twenty minutes. tack什么意思? you can tack photos with it 是什么 请问pin和tack有什么区别? 求这2句英文当中left的意思My book was left on my confused deskThe speaker suddenly changed tack and left us all rather confused这2句话中的left都是什么意思 英语翻译请问Tack sleeve seam back如何翻译,抱歉！应为”Tack sleeve seam to back,来自服装工艺单. 机械图纸上这段英文何意All welds shall be 6mm continuous or as noted 客户说ALL WELDS ARE 6MM FILLET U.N.O.这个 U.N.O. 英语翻译to change cord constrution .should be 1 single rope 32 length tack side to side .to tack rope inside seam for clean finish. 英语单词tack中,换一个字母,组成另一个词并写出中文意思