The piston portion (102) further includes a substantially annular insert chamber (126) formed in the mating face (105) and adapted for receiving a portion of a substantially annular insert (120).

该活塞部分（102）还包括形成于该配合面（105）中且适 于接纳基本上环形的嵌件（120）的一部分的基本上环形的嵌件腔室 （126）。

youdao

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.

看到活塞了吧，还有金属环(会塞入笔馆尾端)，你看到的尾塞是第一次试模，还不漂亮。

youdao

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.

看到活塞了吧，还有金属环(会塞入笔馆尾端)，你看到的尾塞是第一次试模，还不漂亮。

youdao