The wreckage in Abbottabad appeared to have exotic coatings and distinct surfaces and edges reminiscent of stealth aircraft such as the B-2 bomber and the F-22 fighter, aviation experts say.

航空专家说，阿伯塔巴德的飞机残骸似乎具有特殊的涂层和独特的机身表面及边缘，让人联想到B-2轰炸机和F-22战斗机等隐形战斗机。

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Natural killer cells, which are a class of lymphocyte distinct from t cells and B cells, destroy foreign cells (eg, neoplastic cells) even without prior sensitization.

自然杀伤细胞是一类与T细胞和B细胞不同的淋巴细胞，可在未被致敏的情况下破坏外来细胞(如肿瘤细胞)。

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JAX-B is a more complete mapping of XML schema than JAX-RPC provides, but they are distinct.

JAX - B是一种比JAX - RPC提供的映射机制更完善的XML模式映射机制，但二者却截然不同。

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Put the same point the other way around: If I can imagine A without B, then A and B have to be logically distinct things.

把这点推而广之,如果我可以想象A在没有B的情况下存在,那么A和B在逻辑上是相互独立的

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