折合质量 meaning in English

reduced mass

The vibration frequency is given by (4. 25), except that m is replaced by the reduced mass .
振动频率在（425）中给出，只是m用折合质量代替。
Use of electron mass instead of the reduced mass to calculate the ground-state energy of the hydrogen atom gives －13, 606 ev, which is in error by 7 parts in 13, 000 .
用电子质量代替折合质量去计算氢原子基态能量给出-13606电子伏，误差是13000分之7。
The vibration frequency is given by ( 4 . 25 ) , except that m is replaced by the reduced mass
振动频率在（ 4 25 ）中给出，只是m用折合质量代替。
Use of electron mass instead of the reduced mass to calculate the ground - state energy of the hydrogen atom gives 13 , 606 ev , which is in error by 7 parts in 13 , 000
用电子质量代替折合质量去计算氢原子基态能量给出- 13606电子伏，误差是13000分之7 。