Hat Band: Medium to narrow, in a color similar to the color of the hat.

帽腰带：中等偏窄，颜色与帽色类似。

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The numerical simulation results indicate that the finite volume method and spectral band model is suitable to deal with coupled radiation-conduction heat transfer of non-gray medium.

经与光线踪迹法、离散传递法的计算结果比较表明，谱带模型与有限体积解法相结合能处理多场耦合下非灰介质内的辐射换热。

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Photonic band gap PCFs are of a new guidance mechanism, which is unique to the PBG-PCFs 'periodic construction medium.

光子带隙型光子晶体光纤依靠的是一种全新的导光机制，它是光子晶体光纤周期性介质结构所特有的。

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"Medium" on guitar and drums with the Beatles also seems easier than "medium" on "Rock Band, " while "hard" was sometimes just challenging enough for people who had played many times before, with "expert" mode still perhaps beyond reach.

CNN: Review: 'Beatles: Rock Band' fun for jamming in groups

"Wind ensemble is a medium that has a long, long history of patriotic and marching-band music, " Mr. Fairouz said.

WSJ: One Man's Memoir of 9/11 Becomes Another's Symphony