共享保护环共用保护环share: n. 犁头;犁铧;(播种机等的)刃 (=plough-s ...protection: n. 1.保护,保卫,防御,掩护,包庇,照顾 (from ...ring: vt. (rang rung ) 1.鸣,敲(钟),摇( ...spring shared protection ring: 共享保护环bidirectional ms shared protection ring: 双向复用段共享保护环下载手机词典可随时随地查词查翻译