从外层空间拍得的地面相片
extraterrestrial photograph
三碎片发射平面的定向角
orientation of three fragmentation plane
叶片型面的数控加工
NC machining for blade profile surface
切角的H面、E面弯角
H-plane and E-plane bends with a corner cut
凸集的面的结构
facial structure of convex sets
Bezier三角曲面片
triangular Bezier patches
JIS G3314镀热浸铝片的机械性能
Mechanical Properties of JIS G 3314 Hot-Dip Aluminum-coated Sheets and Coils