方頭凹端緊定螺釘square: n. 1.正方形,四方塊,四角;方形物。 2.(方形)廣 ...set screw: 固定[定位]螺絲,彈簧調(diào)節(jié)螺絲。 slotted set screws with cupoint: 開(kāi)槽凹端緊定螺釘hexagon socket set screws with cupoint: 內(nèi)六角凹端緊定螺釘square head set screws: 四角頭固定螺絲下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯