statically determinate structures 静定结构 statically indeterminate structures 静不定结构;超静定结构 ..
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statically determinate property of structures 结构静定特性
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Therefore, three theorems for weight characteristics of statically determinate and indeterminate structures are presented and proved, and the essentials of the problem are explained in this paper.
本文提出和证明了静定、静不定结构重量特性的三个定理，阐明了这个问题的本质。
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