In general, there are two impetuses: one is international factors, the other is domestic ones.
概括起来，有两大动因：一个是国际因素，另一个是国内因素。
2
The achievement motivation is an important social motivation. It has great impetuses to peoples working and studying.
成就动机是一种重要的社会性动机，它对个体的工作和学习都有很大的推动作用。
3
EPSW Electric mapping System is applied widely, the platform impetuses and solves the unresolved problems in surveying and mapping domain and GIS front profession.