Differentialextinction can not also be corrected by the conventional method.
较差消光改正也不能用常法进行处理。
2
Species exhibit different characteristic during different growing processing, and the permanence and extinction of species were influenced to differential extent.
种群在其成长的各个阶段会表现出不同的特征，这些都在不同程度上影响着生物种群的持续和灭绝。
3
The extinction phenomenon of solution is one of the important qualities of nonlinear parabolic partial differential equation, as it explains comprehensive realistic backgrounds.