We had used height anomaly to solve the mixed boundary value problem by measuring the value of gravity of standpoint, level coordinate and height.
传统的作业方法是通过测量地球表面固定点的重力值、水平坐标和高程得到重力异常来求解混合边值问题。
In January 2009, bilateral trade value dropped 21.6% year on year. The gravity and speed of the decline are unprecedented indeed.
双边贸易也受到负面影响,今年1月,中英双边贸易额同比下降21.6%,下降幅度之大、速度之快是罕见的。
In Xi 'an area, because the groundwater has excessively been exploited, the press-dense effect of strata appears so that the ground subsides and the gravity value increases sharply.
西安地区由于过量开采地下水,引起地层压密效应,造成地面急剧下沉与重力值急剧增加。
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