基本模型比具体表示法更加强健，这是因为在需要更改需求和更改实现技术时，它们更易保持有效。
Essential models are more robust than concrete representations simply because they are more likely to remain valid in the face of changing requirements and changing implementation technology.
本文从加强潜水专业管理入手，阐述了提高水下作业安全性的基本途径，可供海上工程技术管理人员参考。
This paper introduces the strength of diving management, and describes the basic way of improving the safe underwater operation for the offshore engineering technical managers as reference.
1953年至1957年，中小学加强劳动教育与实施基本生产技术教育，劳动技术教育的课程地位得以确立。
During the period of 1953-1957, the curriculum position of labor and technical education was established along with reinforcement of labor and technical education at primary and secondary schools.
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