要吃全麦面包而不是白面包，要吃全麦而不是普通的面食，要吃粗谷粮而不是细谷粮等等。

Eat whole wheat bread instead of white, whole wheat pasta instead of regular, brown rice instead of white, etc.

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面的形状分为普通、粗面、龙须面等。

Into the general shape of the rough, such as Long Xumian.

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介绍和讨论利用粗颗粒钛粉末净化普通氮气及其在钛表面气体氮化工艺中的应用。

This article introduces and discusses the purification of ordinary nitrogen by coarse titanium powder and its application in gas nitridation technology of titanium surface.

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