1·And it's basically causing potentially a failure of the recirculating pump or a cavitation of these pumps, both are not good things.
那基本上引起了潜在的，循环泵的失效或者这些泵的空穴现象，两种都不是好事情。
2·This apparatus is enable to change the rotational speed of the pump in a wide range, to heat recirculating water and to load both axial and radial forces on the pump spindle.
该装置的特点是调速范围大，工作介质温度高，可以同时对泵轴进行径向和轴向加载。