单词	划线--放样--做标记
释义	放样；划线；做标记laying-down
随便看	mechanical-operated cell{=moc} mechanical operating valve mechanical operation mechanism mechanical operations mechanical-optical comparator mechanical organ mechanical organization mechanical orienting tool mechanical origin mechanical oscillation mechanical oscillator mechanical oscillograph mechanical output mechanical overload mechanical overload capacity mechanical overspeed trip point mechanical pantograph mechanical pantograph manipulator mechanical paper mechanical papillae mechanical parallel circuit mechanical part mechanical peeling mechanical pencil mechanical phenomenology