The method and course of Non-Linear Process Planning(NLPP) used in STEP-NC was introduced, and the method of validating the sequence of machining working steps was also studied.

介绍了STEP-NC应用环境下计算机辅助工艺设计系统的非线性工艺设计的方法和过程，以及如何进行工步序列的有效化。

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The routing of the course should start at the beginning of the planning process of a project and in the very infant stage of the conceptual design process.

一个球场的球洞路线设计应该在项目策划的开始阶段，在概念设计的初始阶段就展开。

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Community councils take part in consultations during the planning process although, of course, they do not decide whether to reject or accept plans.

BBC: 'Sense of community' is crucial