Science and technology is a permeating element in productive force system.
科学技术是生产力系统中的渗透性因素。
The hydrostatic balance of special shaped caisson injected with water is a space force system.
异型沉箱的箱格灌水静水平衡计算属空间平行力系的计算问题。
The hydrostatic balance of special shaped caisson injected with water is a space force system.
异型沉箱的箱格灌水静水平衡计算属空间平行力系的计算问题。
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