单词	光学杠杆
释义	光学杠杆 optical lever
随便看	hydraulic control system hydraulic control umbilical hydraulic control unit hydraulic control unit piping hydraulic control value hydraulic control valve hydraulic-control valve hydraulic control valve pilot system hydraulic converter hydraulic convey hydraulic conveyance vehicle hydraulic conveyer hydraulic conveying hydraulic conveyor hydraulic copper pipe bending press hydraulic copying hydraulic copying attachment hydraulic copying head hydraulic copying miller hydraulic copy shaper hydraulic copy toolpost hydraulic copy wheel dresser hydraulic core hydraulic core design hydraulic core extractor