The locking pin that joins the parts of a
问题:
The locking pin that joins the parts of a detachable link is held in position by().
A.a tack weld
B.the self-locking characteristics of its taper
C.a cotter pin
D.a lead plug
The locking pin that joins the parts of a detachable link is held in position by().
A.a tack weld
B.the self-locking characteristics of its taper
C.a cotter pin
D.a lead plug