additional horizontal stress的用法和样例：
- Keywords Abnormal pressures;Overpressure;Underpressure;Additional horizontal stress;
- The present direction of the principle horizontal stress is NWW-SEE in the north of Zhuanghai area, while the direction is NEE-SWW in the south area.
- The Poisson's ratio curve is also calculated out based on the curve of minimal horizontal stress which may be obtained by other reliable methods.
- The main horizontal stress in eastern China is the pressure near EW direction, but as a whole, the crust is moving east.