China's economic situation in 2011 will take on the typical "double-face" features.
2011年，中国的经济形势依然具有典型的“两面性”特征。
2
ANSYS is used for the analysis of the integral panel and the double-face repair panel.
应用ANSYS对整体壁板及损伤后双面修补壁板进行有限元分析。
3
The model of position parameters of contact point under engagement is provided, too. Meanwhile, the basic double-face engagement equations are deduced.