Making a guitar with a solid body permitted the sound of the strings to last longer because their vibrating energy was not weakened by a vibrating sound box.

VOA: special.2009.09.27

That is a lot of energy because there is a really solid bond.

这是很多的能量,因为这有一个真实固体键。

麻省理工公开课 - 固态化学导论课程节选