词典论坛联络

   英语
Google | Forvo | +
短语
A-frame ['eɪ'freɪm]
运输, 建造 Abock; tvåbensbock
A-Frame ['eɪ'freɪm]
建造 A-bock; linbock; tvåbensbock
 英语 词库
A-frame ['eɪ'freɪm]
油和气 an A-shaped lifting device; the A-shaped, highest portion of a standard derrick on a drilling rig that is used to support the crown block; the stationary, A-shaped structure that supports and anchors in upright position the mast of a jackknife rig on a drilling rig
A-frame: 173 短语, 6 学科
信息技术1
冶金1
技术167
电子产品1
行业2
通讯1