When the exciton system closes to the statistical equilibrium, this exciton state density automatically approaches to the Fermi-gas nuclear level density with angular momentum.
当激子系统趋近统计平衡时，该公式就自动过渡到具有角动量的费米气能级密度公式。
2
These equations involve heat and momentum transports and govern the kinetic evolution of the non-equilibrium system.
这个方程组包含着热输运和动量输运，能够演示这种非平衡态系统的动力过程。
3
The basic calculation will be defined on the basis of dynamic momentum, energy and mass equilibrium accounting.