| 1. | The necessary population inversion can be achieved in a variety of ways .
我们可以用各种方法来实现这种必要的粒子数反转。 |
| 2. | The rotational levels of the ground vibrational level may be depopulated by radiation .
基态振动能级的各转动能级的粒子数可能因幅射而减少。 |
| 3. | The particle number increased with surfactant and initiator concentration though the data are insufficient for evaluating the nature of these relationships .
粒子数随表面活性剂和引发剂的浓度而增加，虽然数据还不足以评价这些关系的本质。 |
| 4. | The most common method to "pump" a gas laser--that is, to invert the population in the states that give rise to light amplification--is to use a gas discharge .
“发射”气体激光（也就是反转能产生光放大的那些状态的粒子数）的最普通方法是运用气体放电。 |
| 5. | The absorption of this radiation in various lines followed by cascade transitions to lower levels might ultimately produce an anomalously high population for the excited levels of these molecules .
在各谱线处对这种辐射的吸收以及接着向低能级的级联跃迁最终可能使这些分子的激发能级产生异常高的粒子数。 |
| 6. | Distributions of particles in a solitary thermodynamic system
孤立热力学系统的粒子数分布 |
| 7. | Mean leading particle number and mass effects
平均领头粒子数与质量效应 |
| 8. | Determination of impurities particles number in polyvinyl chloride paste resins
聚氯乙烯糊树脂中杂质粒子数测定方法 |
| 9. | Numbers of unremovable particle
残留粒子数 |
| 10. | Area of popular inversion
粒子数反转区 |
