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.
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。
This paper expounds the structure calculation, reinforcement design and structural measures of deformed columns, and advances some primary ideas for reference in design.
文章阐述了异形柱的结构计算、配筋设计和构造措施，提出了一些初步设想，可供设计时参考。
The reinforcement of the primary members of Bridges is one of the effective ways of bridge strengthening.
对桥梁主要承重构件进行补强是桥梁加固的有效方式之一。
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