单词 | main shaft |
例句 | DEFINITIVE EXAMPLES 权威例句〔barb〕Zoology One of the parallel filaments projecting from the main shaft of a feather.【动物学】 羽支:一个羽毛的羽干上突出的平行丝之一美国传统〔drift〕A secondary mine passageway between two main shafts or tunnels.次要矿山甬道:矿井中连接两条大隧道的小巷道美国传统 |
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