rotary ink轮转油墨rotaryadj.旋转的n.旋转式机器；环形交叉路rotary screen digger旋转筛式挖掘机rotary exhaust valve回转式排气阀,回转排气阀rotary freezing unit旋转式冻结机组rotary shift encoder旋转轴角编码器rotary air preheater回转式空气预热器rotary flying shears旋转飞剪,滚筒式飞剪rotary working table回转工作台rotary abutment pump旋转隔板泵rotary-type cooler环式冷却机rotary-vane feeder旋叶送料器

1. A contactor is a special type of electromechanical relay, where the contacts are attached to the armature.
   接触器是一种特殊类型的机电式继电器，其触点被安装在枢轴机构上。
2. The high permeability of the ferromagnetic reeds in a reed relay causes a pronounced skin effect with increasing signal frequency.
   干簧式继电器中铁磁簧片的高磁导率会随信号频率的增加而产生很强的趋肤效应。