floater造句

Q : What is a floater?
什么是”飞蚊”?

The overhand floater serves to position 5.
发上手飘球,发向5号位.

Boric acid is an excellent floater while gibbsite has no native floatabiligy at all.
硼酸是一种极好的漂浮物,而水铝氧却毫无浮动性.