以下为句子列表：
英文: Experiments show the optimum content of pyrophyllite and dolomite is 30%; in contrast to original bond, the refractory point of bond is reduced by 55℃, the average coefficient of thermal expansion is reduced by 30% and flexural strength and shock strength
中文: 通过实验发现：叶蜡石和白云石最佳含量为30%，与原结合剂相比，结合剂耐火度降低了55℃，平均热膨胀系数降低了30%，磨具抗折强度提高了27%，磨具抗冲击强度提高了22%。
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英文: Ltd.. A coupled vibration method on suspended free poles is employed to determine the initial Young's modulus at elevated temperatures, also the thermal expansion coefficients of fire-resistant steel.
中文: 通过高温下的恒温加载拉伸试验，得到不同温度下耐火钢的屈服强度、极限强度、延伸率、面缩率和应力－应变关系，并测定高温下耐火钢的热膨胀系数，采用悬丝耦合共振法测定高温下耐火钢的初始弹性模量。
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英文: Parallel seat gate and seat ring construction can be furnished for high differential pressure services or where high piping loads or thermal expansion may cause sticking of a wedge type gate.
中文: 平行阀座闸阀和阀座环结构可以应用在高压差应用环境中，或者高管道负载，或可能导致楔形闸板闸阀卡住的热膨胀应用环境中。
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英文: Position seating eliminates stress and potential binding due to thermal expansion of the stem.
中文: 定位阀座消除了由于阀杆的热膨胀导致的应力和可能的弯曲。
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英文: Purpose：The equipment is used for mensurating the thermal expansion of refractory products.
中文: 用途：该仪器用于测定耐火制品的热膨胀性能。
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