rotary nut回转螺母rotaryadj.旋转的n.旋转式机器；环形交叉路rotary retort旋转式干馏炉rotary grader旋转式分级机rotary offset轮转胶版印刷机rotary stream旋流rotary duster旋转式喷粉器rotary target旋转靶rotary boring旋转钻探rotary canopy回转顶梁rotary dialer旋转拨号盘rotary primer滑片引水器