UG二次开发语言open/grip开发，本程序是将实体按照Z轴方向投影到已知曲面上，并且可以将实体按照X轴和Y轴两个方向进行阵列复制。-UG secondary development language open/grip development, this process is the entity in accordance with the Z-axis projection to the surface are known and can be the entity in accorda