half ball valve 半球形阀
half ball 半球形 ; 半球
three-way half ball valve 三通半球阀
quartz half ball window 石英半球观察窗
half-ball valve 半球形活门
half-ball rotor pump 半球转子泵
half ball scleral flap 半球形巩膜瓣
N a contact in billiards, etc, in which the player aims through the centre of the cue ball to the edge of the object ball, so that half the object ball is covered 半侧击球
N (as modifier) 半侧击球的
a half-ball stroke
One time, two guys cut the ball in half.
有一次,两个家伙把球切成两半。
In fact, the pair thinks about half of all ball lightning reports are actually tricks of the mind induced by magnetism.
事实上,这对夫妻,认为几乎全部报道过的球状闪电中的一半竟然是磁性在人的心目中的所构成的骗局。
So his advice is to pull the plant out of the container, then cut the bottom half of the root ball into four parts.
所以,他建议将植物从容器中取出来,将底下一半的球状根系切成四部分。
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