安全工程专业英语
Translation -paragraph 3Definition—At this phase the selected concept is amplified to exactly how the product or system is to be built. Preliminary design is performed. perform vt.履行, 执行, 表演, 演出v.完成任务 定义阶段——在这个阶段，已选择的方案被放大到 实际产品或系统将要建立的程度。初始设计完成。
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