beam grab夹: double-layered; lined梁: beam钩环: shackle; looped link夹梁钩,舱盖梁座: beam grab钩环: [设计] shackle; looped link下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:夹梁钩环，即可在微信中查询翻译
