鱼水

This dissertation sets up a physical model consists of the caudal fin, the muscles and the spring, and also gives a mathematical model of the optimal compliance of the spring. Some simulations are carried out. The simulation results says that the elastic element can increase the propulsion efficiency, which provides a technical way for promoting efficiency of underwater propulsors.

本文给出了一种含有弹性元件的肌肉—弹性元件—尾鳍的物理模型，在游动能量损耗最低条件下，建立了求解弹性元件最佳柔顺系数的数学求解模型，并进行了仿真研究，研究结果验证了弹性元件对提高推进效率的作用，为提高仿鱼水下推进器的推进效率提供了一种技术上的解决途径。

HE STARTED out as Richard A. Gekoski, a gawky American high-schooler focused only on discovering sex, and morphed into R.A. Gekoski, a fully fledged, if miserable, academic teaching English literature at a provincial British university. Only in his mid-50s, having abandoned academe and an unhappy marriage, and high-tailed it to London, did he discover who he really was: Rick Gekoski, a roly-poly book dealer with an appetite for all things big and a passion for Groucho Marx's motto:" Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read."

开始，他叫做理查德·A·杰柯斯基，那时他还是个上高中的傻小子，专注于探寻鱼水之乐；之后，他蜕变为R·A·杰柯斯基，一位羽翼已丰的英文文学教员，就职于一所英国地方性大学；而直到他五十五岁左右之时，在放弃了他的学术和一桩并不愉快的婚姻然并奔向伦敦后，他方才找出真正的自我——里克·杰柯斯基，一位胖滚滚的书商，对所有大块物件都有个好胃口，并痴狂于葛洛丘·马克思的名言：&书于犬外，人之挚友；书于犬内，暗不能阅。&

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。