hoarfrost point的用法和樣例：
例句
- The temperature at which the water vapor in a given sample of air becomes saturated is called the dew point.
使一已知空氣樣品中的水蒸汽達到飽和時的溫度稱為露點。 - Some very small leaks will not give a visible flame but may be detected by the presence of oxide buildup at the leak point.
一些非常少量的泄露不會發出可見的火焰，但可以通過在泄露點氧化物的積累來發現。
