energy density of sound的用法和樣例：
例句
- But to produce the observed acceleration of the universe, the constant's density would have to be twice that of matter.
但若想造成現今觀(guān)測到的加速膨脹，則這個(gè)宇宙常數的能量密度須為物質(zhì)密度的兩倍。 - The energy density of space during the inflationary period fluctuated because of the intrinsically statistical quantum laws that govern nature over subatomic distances.
由于支配次原子范圍物理之量子定律的統計特性，使得空間的能量密度在暴脹階段不停地起伏。
