热膨胀的英文：
heat expansion
temperature expansion
thermal dilatation
thermal dilation
thermal expansion

参考例句：

Dilatometer:an instrument used to measure thermal expansion and dilation in solids and liquids.
膨胀计:用于测量固体液体中热膨胀与扩张的仪器.

The thermal expansion coefficient of alusil alloys is on the vertical axis.
纵坐标轴表示铝硅合金的热膨胀系数。

Upon heating the zeolite, the normal siloxane linkage would also experience strain due to thermal expansion.
当加热沸石时,由于热膨胀作用,正常的硅氧烷鍵也会存在张力。

"bimetallic:Consisting of two metals, often bonded together and having different rates of thermal expansion."
双金属的:由两种通常是结合在一起且具有不同热膨胀系数的金属组成的。

Flexible or split wedges are recommended for service above500℉ to avoid wedge binding due to thermal expansion.
对于温度超过260℃应用环境，建议采用柔性或拼合式楔形闸板，避免楔形闸板由于热膨胀而被卡住。

heat是什么意思：
n. 热；强烈的感情
v. 使变热或变暖；使激动

incomplete heat
不完全发情

heating installation
暖气设备|供暖装置

at a white heat
在盛怒之下|在感情万分激动之下

temperature是什么意思：
n. 温度，气温；高烧，发烧，发热；体温

The temperature climbed.
温度慢慢上升。

stack temperature
锅炉炉身温度

The capacitor surface temperature will not exceed the upper rated temperature.
电容器表面温度不许超过额定上限温度。