始生代 始生代的英文 英语翻译 archenemy; Archeozoic; eozoic 拓展翻译 始生代的eozoic时效期间的开始commencement of the limitation period始begin始爆剂primer-detonator始代数initial algebra始点beginning point始点斜率starting slope始动发动机starting engine始动机starting engine始动机理starting mechanism始动继电器initialing relay始动转矩starting torque始动阻力starting resistance始端顶点initial vertex始发originating始发爆管primer-detonator始发爆器primer-detonator始发端originating terminal始发港port of departure始发交换机originating exchange