基本解释n.尾鳍；n同根派生 英汉例句The simulation results show that the oscillation frequency of tailfin and the phase lag of two joints have more important influence on ahead speed. 仿真结果表明,尾鳍摆动频率和两关节相位差对推进速度有较大的影响。double tailfin propulsion 双尾推进