This is what's called the Bohr radius, and we'll explain - hopefully we'll get to it today where this Bohr radius name comes from, but for now what you need to know is just that it's a constant, just treat it like a constant, and it turns out to be equal to or about 1/2 an angstrom.

它叫做玻尔半径，我们后面会解释,希望我们今天可以讲到,波尔半径这个名称的由来，但现在你们只要记住,它是一个常数，只要把它当做一个常数对待，它等于,或者是1/2埃。

麻省理工公开课 - 化学原理课程节选

Mount Zion is in Jerusalem, it's the Temple Mount today where the mosque now is. Today, we'll consider Levenson's analysis of the Sinai tradition as an entree into the Israelite concept of the Torah, and the covenant bond, its meaning and its implications.

耶路撒冷的郇山，这座神庙山,是今天El-Aqsa清真寺的所在地，今天我们,将对Levenson对西奈传统的分析进行思考，以犹太人对,摩西五经的观点作为主线，以及条约的联系，意义和隐含意义。

耶鲁公开课 - 旧约导论课程节选