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
Since the earth looks like a ball, the sun can shine on only half of it at a time.
答案:由于地球看上去像一个球,太阳一次只能照到它的一半。
He also looked very comfortable with the ball in his hands and even brought the ball up initiating the half court offense for a few sets while playing with Kyle Lowry.
当球在他手里时,他看上去游刃有余,甚至能带球到前场,和凯尔·洛瑞完成半场的进攻配合。
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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