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您要找的是不是： bobsn. 一串或一束；悬挂物；短发；上下摆动（b... Babsn. 芭布斯（女子名，等于Barbara，Babette） - 1
This irreflexivity can be used to set up an equivalence relation—that is, for Key s a and b , if comp(a, b) is false and comp(b, a) is false , then a and b must be equivalent. 这个反自反性质可以用来建立一个等价关系(equivalence relation)—也就是，对于Keys a和b来说，如果comp(a,b)为false并且comp(b,a)也为false，那么我们就说a和b是等价的。 - 2
B And mu B in the liquid phase B has to be equal to mu B in the gas phase. S o four minus two constraints means you have two degrees of freedom. 液相的μ,必须等于气相的μ,所以四减去二意味着,你有两个自由度。 - 3
The U. S. , for example, has B-2, but B-52, which is a veteran now, is still the most widely and frequently used bomber. 就像美国虽然有B-2轰炸机，但列装数量最多、使用频率最高的仍然是老骥伏枥的B-52。
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