Standard material has a diffuse shading model that does an excellent job of rendering solid, non reflective objects such as plastic, ceramic, and so on.

标准材质有一种漫反射着色模式，这对于渲染固体、以及非反射对象，例如塑料、陶瓷等等的效果是极好的。

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But the differences of material? Construction and work condition of actuator lead to difficulty of setting up a standard mathematic model to precisely formulate the dynamic non-linearity character.

但由于驱动器的材料、结构和工作条件各异，所以关于动态非线性的定量描述难以建立一个统一的数学模型。

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The composite material may be configured by standard processing methods to finished products such as COINS, tokens, and medallions, keys, and other non-nesting articles.

可以通过标准的加工方法将所述复合材料配置为成品，如硬币、代币和大奖章、钥匙和其它非嵌套物件。

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At the moment, I have to go through some of the more standard material before we go to the more non-standard material.

现在我将会讨论一些标准的形式,接着再去讨论一些不标准的形式

耶鲁公开课 - 基础物理课程节选