儲集活套坑環(huán)形孔loop: n. 1.(用線、帶等打成的)圈,環(huán),匝,框,環(huán)孔,線圈 ...pit: n. 1.坑,凹地,凹處;【礦物】礦井;煤坑;【植物;植 ...double-looping pit: 雙活套坑裝置entry-looping pit: 進口活套坑looping pit tower: 活套坑塔下載手機詞典可隨時隨地查詞查翻譯