1.Suitable for all rotten pond too , floorpassway and cannelure , etc .

1.也用于一切腐池。

2.This occurs at the weak cannelure, which is a groove allowing the bullet casing to be sealed to the copper jacket.

2.这发生在脆弱的子弹线上，而子弹线是一个深沟来将弹到铜套里面。