sagging moment
柯林斯詞典
1. N a bending moment that produces concave bending at the middle of a simple supported beam 中垂力矩 (Also called positive bending moment)
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<button id="y822k"></button> 1. N a bending moment that produces concave bending at the middle of a simple supported beam 中垂力矩 (Also called positive bending moment)
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