The order of slip boundary condition shows an apparent influence on the friction coefficient but only a slight influence on the Nusselt number if compressibility is ignored.

在不考虑可压缩性因素时，滑移边界条件的阶数对阻力系数的影响较大，对换热系数的影响不是十分明显。

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At a chain known for speed with a wide range of menu options, it's easy for mistakes to slip through the cracks, from forgetting an item in a large order to simply adding the wrong kind of milk.

作为以速度知名的有大量菜品的连锁，失误很容易成为漏网之鱼，从大订单中忘记一个物品到仅仅是添加错牛奶品类。

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Bush also said he plans to sign an executive order Tuesday to prohibit federal agencies from recognizing earmarks not approved by Congress (lawmakers frequently slip them into the final versions of legislation).

FORBES: Full Circle