问题
问答题 简答题
何谓油品的馏程？其含义如何？
答案
参考答案：
当油品在试验条件下进行加热蒸馏，流出第一滴油品时的温度称为初馏点；蒸馏到最后即将蒸干时，达到的最高温度称为终馏点，初馏点到终馏点这一温度范围称为油品的馏程。馏程用来判定石油产品轻重馏分的多少。馏出的温度低，表示轻质成分多，反之重质成分多。
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何谓油品的馏程？其含义如何？
参考答案：
当油品在试验条件下进行加热蒸馏，流出第一滴油品时的温度称为初馏点；蒸馏到最后即将蒸干时，达到的最高温度称为终馏点，初馏点到终馏点这一温度范围称为油品的馏程。馏程用来判定石油产品轻重馏分的多少。馏出的温度低，表示轻质成分多，反之重质成分多。
Do you write your own blog(博客)？Do you often others' blogs on the Internet? All over the world, not only famous persons but also many students use blogs as diaries and places to share their experience and advice or help. “I write my activities every day, funny things or worries in my life.” says Lali, a 16-year-old high school student at Cambridge High School in Washington." I like putting pictures on my blog because it can make my blog more and more people will like it, It's a good way to my life to the world." She has had her blog for eight months. Students like writing blogs they can write anything they want to, but don't need to any money. Once(一旦)you start to write your blog, you will that you open up a new world. But what you write down may trouble you . So, use the blog carefully you can keep yourself away from some trouble. The blog makes everybody's life colorful.
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