The general formulae of normal gravity are dealt with at first, a Taylor series expansion is then developed in detail, and numerical constants are given for the GRS80 and WGS84 ellipsoids.

• 在论述一般正常重力公式的基础上,详细推导了正常重力的泰勒级数展开式,给出了适用于GRS80椭球和WGS84椭球的数值常数。