circumrotate

The propellers is installed in the top of the helicopter, circumrotate flatly.

本^文由方案,范文库,为您'.理.旋转，可在小面积场地起落。

Double Rollers Crusher is used to crush clunch and partial shales for brick enterprises. It has two rollers to circumrotate in reverse. The clunch between rollers are crushed by extrusion.

双辊破碎机普遍用于和部分混合料生产砖瓦破碎设备，它有两个工作辊子作相反方向旋转，辊子间受到挤压而破碎。