短語(yǔ)詞組短語(yǔ)Gun barrel perforation test 有槍身射孔試驗(yàn)Non -gun barrel perforation test 無(wú)槍身射孔試驗(yàn)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 復(fù)合射孔槍 返回 gun perforation