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热膨胀系数 [rè péng zhàng xì shù]
coefficient of heat expansion
- 研究结果表明，纳米晶体线越细，其热膨胀系数越大。
The results show that the thinner crystal nano-wire has a larger thermal expansion coefficient. - 摘要测量了聚酰亚胺薄膜在冷热循环过程中各温度点的热膨胀系数。
Thermal expand coefficient of polyimide films at each temperature was measured in the process of thermal cycling. - 高刚性材质筒身，粗密加工高刚性筒身，热膨胀系数稳定，增加产品使用寿命。
D. High-rigidlty tube body and fine manufactured high-rigidlty tube body have stable thermal-expansion coefficient, to increase product service life.
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