So, all that's left is the helium nucleus, two protons, two neutrons.

仅留下氦核，两个质子，两个中子。

麻省理工公开课 - 固态化学导论课程节选

That there are two colors per strut, so what's linking the two backbones together are two colored segments that come from the outside towards the middle, and that the colors occur only in certain combinations, red and green, yellow and blue, that's all you see.

每个梯阶有两个颜色,主链是由,两种不同颜色的片段由外向内连接起来的,这些颜色仅以某种特定方式配对,红连接绿,黄连接蓝,大家都能看到

耶鲁公开课 - 生物医学工程探索课程节选

I should say, to my knowledge, we know nothing more about Glaucon and Adeimantus from history, but Plato put them into his dialogue.

我必需说的是，就我所知Glaucon，和，Adeimantus，两人,仅是历史中的两个角色，但柏拉图将他们放入他的对话录。

耶鲁公开课 - 政治哲学导论课程节选

A very important result is that if two vectors are equal, if A = B, the only way it can happen is if separately Ax is equal to Bx and Ay is equal to By.

这里有一个相当重要的结论,如果两个矢量相等,例如 A = B,那么当且仅当,Ax = Bx 和 Ay = By 分别成立

耶鲁公开课 - 基础物理课程节选