replaceable 考研

1.a knife with a replaceable blade.

带有可更换刀片的小刀。

2.R " is a replaceable function, e. g. acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.

是取化基，如乙基、甲基及它们的环同系物或卤基。

3.the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press .

钻机的切割部分；通常是尖头的有螺旋状图案并且可以更换，用在钻柱钻柄或钻床上。