背鳍
- 与 背鳍 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Anglers and batfishes; spiny-finned marine fishes having pectoral fins at the ends of armlike processes and a long movable spine on the dorsal fin to lure prey to the large mouth.
鮟鱇和圆燕鱼；鳍呈刺状的鱼类，其胸鳍生于一个臂状突出物的顶端，脊骨生于背鳍之上，较长，可移动，用以将猎物吸引至其大嘴边。
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Small smooth-skinned sharks lacking spines on dorsal fins.
长有细长直立背鳍身体花白的石首鱼。
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The geometric features of the body and locomotive characteristic and parameters of the flexible dorsal fin are discussed.
以依靠长背鳍推进的&尼罗河魔鬼&为研究对象，对弓鳍目模式推进进行了研究。
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The sub-systems composed of flexible fin ,mechanism,control system,actuator were designed in detail.
单柔性长鳍波动仿生推进器是一种模拟鱼类&尼罗河魔鬼&的长背鳍波动推进方式而设计的新型水下仿生推进装置。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而，要让一个真正的引用，你需要提供详细的个人和财务信息。