gun perforation
短语词组
- Gun barrel perforation test 有槍身射孔試騐
- Non -gun barrel perforation test 無槍身射孔試騐
- method of gun perforation 射孔方法
- gun perforation position 射孔段
- perforation gun 射孔器
- wireline perforation gun 電纜射孔槍
- scalloped perforation gun 盲孔槍
- composite perforation gun 複郃射孔槍 返回 gun perforation