这种转变包括从用前肢划水到身体波动再到尾巴摆动，就像现代鲸鱼的水平尾鳍。
This transition to living in the sea involved changes from paddling with limbs to undulating the body to oscillating a tail, such as the horizontal tail flukes in modern whale species.
鱼类推进模式分为波动和摆动推进模式，由此产生了仿鱼推进机理及推进技术。
The fish propulsive modes are divided into fluctuation and swinging propulsive modes. According to these, the biomimetic propulsive mechanism and propulsive technology were created.
非趋势价格摆动指标穿过2014年小波浪的高点和低点，与价格上升中波动大致匹配。
The detrended price oscillator cuts through small waves of highs and lows into the third quarter of 2014, roughly matching channeled price swings within the uptrends.
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