“三同时”制度在现今有其存在的重大意义，有必要对这一制度加以完善。
"At the same time the threes" the system has its existence great significance in the nowadays, it is necessary to consummate to this system.
强调了工厂安全评价与规划、产品安全设计两门课程的重要性，以保证安全卫生“三同时”制度的实施，并讨论了培养安全工程人才的各种模式。
The importance of two courses, i. e. plant safety assessment and planning and product safety design, is specially emphasized, so as to secure the implementation of " threes…"
强调了工厂安全评价与规划、产品安全设计两门课程的重要性，以保证安全卫生“三同时”制度的实施，并讨论了培养安全工程人才的各种模式。
The importance of two courses, i. e. plant safety assessment and planning and product safety design, is specially emphasized, so as to secure the implementation of " threes…"
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