barred cam

... barred bearing 圆筒轴承 barred cam 筒形凸轮 barred cargo 桶装货 ...

 cylindrical cam

... cylindrical buoy 圆筒形浮村;罐形浮筒 cylindrical cam 筒形凸轮 cylindrical cartridge type renewable fuse 可换新熔丝管 ...