Its key is that the various content-defined materials are made into a water soluble fertilizer which hasn't any suspended matter and precipitate by the action of chemical reaction.

它的关键所在就是通过反应把规定含量的物质制成无任何悬浮和沉淀物的水溶性液体肥料。

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It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment.

它毕竟是一个简单的球窝关节；它有一定的载荷；它在有限的生命中需要可靠性；它必须包含适合工作环境的材料。

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For example, you could revise enablement materials to accommodate the process defined for that business unit or development project.

例如，您可以定制启动材料，以适应业务单元或者开发项目定义的进程。

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The fixed fee model works for design stages with easily defined goals that are unlikely to change, while parts with less clear objectives are better served via time and materials.

FORBES: The Benefits of A More Thoughtful Approach To Consulting