此生产过程将带出两种有用的副产品：一是具有商业价值的聚合物高活性无机酸木质素；另外是用在染色和糖尿病患者食物中的木糖。

The process would produce two useful by-products: unsulphonated lignin, a commercially valuable polymer, and xylose, a type of wood sugar used in dyeing and in foods for diabetics.

youdao

那座建筑物20米高。

That building is 20 meters high.

youdao

曾经有一段时间，纽约市的建筑物几乎都是一样高的。

There was a time when New York City buildings were almost all the same height.

youdao

This should make sense because if something has a low ionization energy, that means it's not very electronegative, which means it's going to be a lot happier giving up electron density, which is essentially what you're doing -- when you're forming covalent bonds is you're sharing some of your electron density.

这应该是合理的,因为如果某物的电离能很低，这也就意味着它的电负性也不高，那么它就会更愿意,放弃一定的电子密度，而本质上这正是你在,形成共价键时所需要做的,分享你的一些电子密度。

麻省理工公开课 - 化学原理课程节选