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O 开头的英语单词（共 89,563 个）
oval arch
椭圆拱
oval arm
瓜拱
oval bearing bush
圆形轴衬
oval belt fastener
[机] 扁圆皮带扣件
oval body
卵圆体
oval boiler
椭圆沸腾器
oval bow machine
椭圆形连铸机
oval broach
椭圆形拉刀
oval buchu
[医] 卵布枯[叶]
oval bush
[机] 椭圆导套
oval calotte
椭圆曲面
oval cam
椭圆形凸轮;卵形凸轮
oval can
[包装] 椭圆罐
oval center
[医] 半卵圆中心
oval chuck
椭圆夹头
oval cigarette
椭圆形香烟
oval closure
卵圆孔闭锁
oval compass
椭圆规
oval compasses
椭圆规
oval copy
椭圆形样板
oval countersunk head rivet
半沉头铆钉;椭圆埋头铆钉
oval countersunk rivet
[机] 扁圆顶埋头铆钉
oval countersunk screw
[机] 扁圆顶埋头螺丝钉
oval cross section
椭圆截面