Separate method: Archimedesspiral centrifugal force. Double spiral is more advantageous to part liquid dreg and not easy to block.
分离方式：采用阿基米德螺旋离心分离，双螺旋更利于渣液分离，不易堵塞。
2
The mathematical model of bending logs of curved elliptical cylinder is analysed with the elliptical-archimedesspiral envelope in cylindric coordinate.
本文采用柱坐标，以椭圆—阿基米德螺线包络组成解析曲线椭圆柱体的弯曲原木的数学模型。
3
The Archimedesspiral cord modulating chopper's exposure efficiency was theoretically analyzed and numerical simulated, and its impact on the following signal processing was obtained.