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凹面底部
1、concave polygon───n.[数]凹多边形;n.凹多边形
2、concave mirror───n.凹透镜; 凹镜
3、bottom───n.(Bottom)人名;(英)博顿;vi.到达底部;建立基础;vt.装底;测量深浅;查明真相;adj.底部的;n.底部;末端;臀部;尽头
4、concave function───[数]凹函数
5、concave upward───凹向上的;凹向上;[医]凹面向上
6、concavo-concave───adj.两面凹的
7、at bottom───实际上(等于atthebottom);adv.实际上; 说到底; 骨子里
8、concave───adj.凹的,凹面的;n.凹面;v.使变凹形
9、concave shape───[医]凹形
1、The concave bottom mill shoe is used to grind downhole small objects and other unstable fallen objects.───凹底磨鞋可用于磨削井下小件落物以及其它不稳定落物。
2、adhesive dike slot (31) is formed around the joint concave bottom, thus preventing the main body and the neck back side from dirtiness caused by excessive adhesive overflow.───粘合剂堤槽(31)形成在接合凹底部的周边,以防止用粘合剂连接时过量粘合剂溢出弄脏主体及琴颈的背面。
3、On seismic profile cross-cut the channel, it generally presents as a lenticle with flat top and concave bottom and has the character of infilling in reflection.───在横切河道的地震剖面上一般表现为充填反射状的顶平底凹的单透镜体;