And he found that the middle member of the triad had an atomic mass that was midway between the atomic masses of the end members.

他发现三元组中间的元素,的原子质量,是位于两端的元素的原子质量,的中间。

麻省理工公开课 - 固态化学导论课程节选

So, we'll listen to the end of the third presentation of this with the contrapuntal idea dominated by strings, melody, bass, other stuff in the middle and then he will bring in the brass for the final statement of this.

我们听完第三次主题呈现,由对位理念主导的,弦乐组,旋律,低音部,以及中间的东西,然后他会引入铜管乐器,作为最后的陈述

耶鲁公开课 - 聆听音乐课程节选