材料在断裂点的强度（通用拉伸强度）与其密度之比，用厘米（米2 /秒2 ）表示。 比模量 比模量(英文specific modulus)是单位密度的弹性模量，是一种材料性质。又称劲度-质量比或比劲度。
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specific modulus of composite 复合材料比模量
specific young's modulus 比杨氏模量
specific flexural modulus 比挠曲模量
The longitudinal tensile specific modulus has significant variation between the five trees.
纵向弹性比模量的株间变异显著。
参考来源 - 杉木、马尾松细观力学性能及热处理材性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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In addition, they have a 17% higher specific modulus than current high strength aluminum alloys.
此外它们的比弹性模量也比现有高强度铝合金高17%。
Results show that yarns sized by sizes with films of higher breaking elongation and specific work of rupture and lower initial modulus have better abrasive resistance and weaving performance.
研究结果表明，浆膜断裂伸长率和断裂比功大的。拉伸模量小的浆料上浆的浆纱耐磨性较好，织造性能也较比良。
The acoustical properties and specific heat of sample at low temperatures were studied, and the temperature dependences of modulus, sound attenuation and specific heat were obtained.
对其低温的声学和比热容性质进行了研究，得到了样品模量和声衰减以及随温度变化的规律。
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