... back of panel mounting ==> 在面板后面的装配 back of piston ring ==> 活塞环内侧边 back of the saw ==> 锯背,锯背 ...
双语例句
1
Now you see the piston, and the metal ring; this parts will insert into the back end of the barrel. the end cap you are seeing the from T1 test shot, not good yet.