短語詞組短語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