Direction of oil? Gas migration and accumulation at Yihezhuang area are pointed out and the migration boundary of the petroleum is definedin combination with regional geologic background.
结合区域地质背景，指出了义和庄地区油气的运移和聚集方向，确定了石油的运移边界。
2
In the second phase, the best operating point, as defined by the decision maker, will be chosen from among the available points on the tradeoff boundary.
在第二阶段，由决策者界定的最佳工作点将从折衷过界的有效点中选择。
3
Besides common geometric measurements such as distances and angles, a new measurement of average curvature energy defined for boundary curve segment is included in the set to describe curve feature.