The tracer CAM of piston ring is designed according to the principle and method proposed in this paper and the computer simulation result of this compensation effect is given.
按照上述原理设计了活塞环仿形靠模，并对其补偿效果作了数字仿真。
2
Under normal circumstances, after a spring in the long run will be shortened in length, compensation spring moving mechanical seal ring because centrifugal force will cause deformation.
一般情况下弹簧在长时间运行后长度会缩短，补偿弹簧在动环上的机械密封还会因为离心力的原因而变形。
3
A simple angular method of laser antenna is presented to meet the needs of the ship laser multi-ring detection and multi-ringcompensation techniques of automatic following targets.