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wave报务员 radio (or wireless) operator无线电室 radio room无线电话 radio telephone螺叶后倾 rake...

持的英语例句：1. Amy's own Republican sympathies strengthened as the days passed.埃米...

eam loss吸（抽）气阀 aspirating valves吸入阀 suction valve吸入阀限位器 suction valve guard先导式安全...

片printed rabbit skin jacket 印花兔皮夹克printed rabbit skin overcoat 印花兔皮大衣printed rab...

lattening hammer (or iron)浮动型钻油台 floating hull type drilling rig浮动仪表台 floating i...

r electric motor 小功率电动机small power generator 小功率发电机small rail car 轨道小车small rate...