un. 彈性環(huán)銷 [網(wǎng)絡] 彈性環(huán)樺 spring ring dowel: 彈性環(huán)銷; 彈性環(huán)樺alligator closed-ring dowel: 齒輪形暗銷apple ring dowel: 楔形暗銷closed ring dowel: 閉口環(huán)榫skewed ring dowel: 斜輪準下載手機詞典可隨時隨地查詞查翻譯