单词	7%cr
释义	同其余为Cu｝--7%Cr--
随便看	tightened tightened inspection tightened sampling inspection tightener tightener ring tighteners tightening tightening bolt tightening device tightening key tightening of channel tightening ring tightening rod tightening roller tightening torque tightening up tightening up device tightening up screw tightening up temperature tightening wire tighten one's belt tighten one's purse strings tightens tighten the noose around the neck of someone tighten the purse strings