The petroleum is first heated in a boiler to separate the smaller hydrocarbons with low boilingpoints from the larger hydrocarbons with high boilingpoints.
石油先在一蒸发器内加热,从高沸点的大分子碳水化合物中分离出低沸点的小分子碳水化合物。
3
So strong bonds means high melting points and boilingpoints.