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- long - based undulatory fin 柔性长鳍
- The propulsion mode of fish's undulatory fin has advantages on less swimming disturbance, generations of vector thrust and convenience of being transplanted to underwater vehicles. 鱼类波动鳍推进模式具有流体扰动小、可产生矢量推力并且易于向水下机器人移植等显著优点,为未来水下机器人的仿生设计提供了新的选择,具有广阔的应用前景和理论研究价值。
- Stylopodium conic, base undulate. 花柱基圆锥形，基部波状。
- The kinematic and dynamic models are established on the basis of bionic inspirations in Balistiform fish's undulatory fins and the drag model in fluid mechanics. 2.;根据波动鳍的仿生学研究结果;并基于流体力学中的阻力模型;建立了波动鳍运动学模型与动力学模型。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- The beggar spun a long yarn about his misfortunes. 那个乞丐编造了一大篇自己如何遭遇不幸的故事。
- How long will our food supplies hold out? 我们的储粮还能维持多久?
- It was a long trudge up the hill. 那段上山的路很难走。
- Mr Jones has a long history of heart trouble. 琼斯先生有长期的心脏病史。
- The aircraft has a long tail fin. 那架飞机有一个长长的尾翼。
- Cream cakes are no long a luxury. 奶油蛋糕再也不是奢侈品了。
- It took a long while to do the work. 做这个工作花了许多时间。
- Between ourselves, that young man's hair is much too long. 就咱俩之间说说，那小伙子的头发实在是太长了。
- It may take a long time to find a solution to the problem. 也许要花很长时间才能找到解决这个问题的办法。
- It was very thoughtless of you to keep her waiting so long. 你让她等那么久也太不体谅人了。
- He delivered a long prose full of platitudes. 他发表了一篇充满陈词滥调的文章。
- Long hair for men came in in the sixties. 男子留长发在六十年代流行。
- He kicked in after a long and painful illness. 经过长期痛苦的疾病之后，他死了。
