| 单词 | main structure |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔boom〕A spar that connects the tail surfaces and the main structure of an airplane.尾桁：连接飞机的尾部表面和机身的桁美国传统〔detach〕One of the panels had become detached from the main structure.一块镶板已从主体结构上脱落。牛津高阶〔ell〕A wing of a building at right angles to the main structure.厢房：与正房成直角的房子美国传统〔man-hour〕The main structure takes only about 40 man-hours to erect.竖起主体结构只花约 40 个工时。朗文当代 |
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