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Feynman: They're not. Some manhole covers are square. It's true that there are SOME round ones, but I've seen square ones, and rectangular ones.
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不见得，有的下水道井盖就是方的。的确也有圆的，不过我也见过正方形的和长方形的。 |
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Feynman: Yes. Round covers are used when the hole they are covering up is also round. It's simplest to cover a round hole with a round cover.
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是的。之所以用圆的井盖是因为井口也是圆的。用圆的井盖去盖住圆的井口，这是最简单不过的办法。 |
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Fez is a city in Morocco.
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非斯是摩洛哥的一座城市。 |
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Fhe frog reproduce through egg/ovum.
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青蛙通过产卵繁殖. |
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Fiat and General Motors (GM) have yet to give any indication as to whether they have succeeded in coming to an agreement over a contested takeover.
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美国通用汽车公司已同意支付20亿美元的分手费给意大利菲亚特汽车公司,这意味着通用不必被迫吃下菲亚特剩余的全部股份.目前双方都拒绝就此事发表评论. |
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Fiat money has not only no particular value in use, it doe 't even really have a value in exchange except that which is decreed that it would have.
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名义货币不仅仅没有什么特别的价值，而且在商品的交换中它本身根本没有价值。它拥有的只是法律所赋予它的价值。 |
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Fiat money has not only no particular value in use, it doesn't even really have a value in exchange except that which is decreed that it would have.
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名义货币不仅仅没有什么特别的价值，而且在商品的交换中它本身根本没有价值。它拥有的只是法律所赋予它的价值。 |
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Fiat sold a 20 percent stake in Fiat Auto to GM in 2000 and the group has an option to sell GM the rest from 2004.
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2000年，菲亚特集团把菲亚特汽车公司20％的股份售予通用汽车公司；它还拥有从2004年起出售其余股份的期权。 |
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Fiber A form of SCLERENCHYMA cell that is often found associated with vascular tissue.
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纤维：一种厚壁组织细胞，通常与维管组织有关。 |
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Fiber Bragg Grating has already been commercial overboard, but in China it is still researching.
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光纤光栅传感器国外已经商品化，国内尚处于研制阶段。 |
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Fiber Optics Business Unit (Shanghai) was founded in 1999 and relocated to Waigaoqiao Free Trade Zone in Pu Dong, Shanghai, P.R. of China in 2001.
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其中光纤事业部在1999年成立，后在2001年重新部署于上海外高桥保税区。 |
