Petrol has a low boiling point; if a little is poured into the hand, it soon vaporizes.
汽油沸点低,如果倒入少许在手上,它立即就蒸发掉。
Since R134a has a relatively low boiling point, the water is hot enough to convert it into a gas.
因为R134a的沸点相对较低,温水的热量足以将它汽化。
Vacuum pump is a relatively sophisticated equipment, it's working medium is a special high boiling point, low-volatile oil pump, its effectiveness depends on the mechanical pump and pump oil quality.
真空油泵是一种比较精密的设备,它的工作介质是特制的高沸点、低挥发的泵油,它的效能取决于油泵的机械结构和泵油的质量。
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