Here is a very simple, generic tutorial I wrote up for a dirty metal texture.

这是一篇关于制作污损的金属纹理的非常简单的，通用的教程。

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Preparation of metallic ceramic coatings by thermochemical reaction method has the advantages of simple process, low cost, very strong adhesion of coatings to metal surface.

热化学反应法制备金属基陶瓷涂层具有工艺简单、成本低廉、涂层与金属表面结合力特强等优点。

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Hertz's experiment sounds very simple. He used two pieces of metal placed close together. He used electricity to make a spark jump between the two pieces of metal.

赫兹的这项试验说起来非常简单，他用了两块金属板相互靠近地放置，用加电的方式使这两块金属板之间产生放电火花。

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Concerning the living space of this new divine being: it is a very clean-cut, simple and middle-sized, six-story in height, which is built with silver metal and crystal in large quantities and that is not very far away from where he used to work in his human form.

FORBES: Apparently Steve Jobs Is Now Half a Yak And Lives In A Silver And Crystal Castle