In the process of formation, the material must have received an environmental signal that reflects a change in climate and that can be deciphered by modern physical or chemical means.

在形成的过程中，材料必须接收到环境信号，反映气候变化，并能被现代物理或化学手段破译。

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This process is termed "replacement" because solutions have dissolved the original material and replaced it with an equal volume of the new substance.

这个过程被称为“置换”，因为溶液溶解了原来的物质，并用等量的新物质取而代之。

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Collecting raw material, which is reading books and taking notes, is very much like the process of brainstorming at the prewriting stage of an ordinary essay.

收集原始资料，即阅读书籍和做笔记，很像写一篇普通文章前的头脑风暴过程。

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This is the idea that a patentshould be given to a machine or something that creates a material change, like a chemical process.

VOA: special.2010.07.16

If the soul is immaterial, doesn't it follow automatically, trivially, that the soul can't be destroyed by a material process?

如果灵魂是无形的,是否可以顺理成章地得出,灵魂无法被实体过程所摧毁呢

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That's a material process, a physical process.

这是一个物质过程,物理过程

耶鲁公开课 - 死亡课程节选

To dig up the raw material, process it, convert from oxide to fluoride to metal to iodide, to mix it with mercury, make their own light bulbs, all of this within each of the different 192 sets of national boundaries.

FORBES: Not the Way to Resolve an Economic Crisis

The most important material in the process is Kevlar, a fabric designed to stop bullet fragmentation and shrapnel.

NPR: Pride and Production in a Vermont Helmet Factory

Principal investigator Joe Veverka from Cornell University said the alterations were driven by the process material loss as the comet orbited the Sun.

BBC: Stardust probe finds 'subdued' comet crater