通常以硅酸钠水溶液作为单体硅源，氢氧化钠溶液作为碱激发剂以提高原料的溶出性。

Generally, sodium silicate solutions are used for monomer sources added with caustic soda solutions for activation of leaching out of fillers.

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So you're going to be able to take a description of a problem and map it into something computational.

因此你们能拣出,一个问题的主要描述,并将其编成计算性的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

You take a nine-month-old and for Piaget a nine-month-old is just starting to make sense of objects and their permanence.

你找到一个九个月大的婴儿,在皮亚杰看来,九个月大的婴儿才刚刚发展出,客体以及客体永存性的概念

耶鲁公开课 - 心理学导论课程节选

So you can think about how these 2 things combined are going to be electronegativity, which is a measure of how much an atom wants to pull electron density away from another atom.

因此你可以想象出,这两样性质合起来就是电负性，也就是一个度量，关于一个原子,有多希望把另一个原子的电子密度拉过来的。

麻省理工公开课 - 化学原理课程节选