词汇	marks of origin
释义	marks of origin 原产地标记
随便看	mechanical tool column mechanical tool for vertical drilling mechanical tooling of concrete mechanical top bracing mechanical top drive mechanical top-loading balance mechanical torpedo countermeasure mechanical torque mechanical torque converter mechanical torque convertor mechanical torque rate mechanical toy mechanical track aligner mechanical track maintenance mechanical track renewal mechanical traction mechanical trade Mechanical Training Establishment mechanical training times mechanical transcription mechanical transducer mechanical transformational transducer mechanical transimission mechanical translatio mechanical translation