The author of this paper point out that the necessary and possibility for the predication of environmental factor by catastrophe theory in EIA system.
在分析油田开发前后生态系统的非同构性后，探讨了用突变理论解决因子预测的可能性。
2
By analyzing the measurement error of this system, it is known that the precision of detecting feature point is a decisive factor affecting the measurement.
通过对系统数学模型的误差分析，确定标志点的检测精度是影响测量误差的主要因素。
3
In the vacuum system, the heat radiation is the main factor to affect the temperature of each point of the filament in area source electron gun.