ultimate tensile strength短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 极限抗张强度 The results show that the ultimate tensile strength and yield strength of the alloys rise but the total elongation decreases as the temperature of quench medium drops. 结果表明：随淬火介质温度的降低，淬火降温速率提高，合金的强度增加，塑性下降； cnki