wax expansion

• 蜡型膨胀； 蜡膨胀

wax expansion的用法和样例：

例句

1. Install a diaphragm-type expansion tank that is suitable for potable water on the cold water supply line.
   在冷水供应管道上安装一个适用于饮用水的隔膜型膨胀罐。