单词 | 钻架 |
例句 | DEFINITIVE EXAMPLES 权威例句〔derrick〕A tall framework over a drilled hole, especially an oil well, used to support boring equipment or hoist and lower lengths of pipe.钻架:竖在钻井(尤指油井)之上的支架,用来支撑钻孔设备或提升和下放钻管美国传统 |
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