英语语法分析

The variant function is the core of geostatistics.

变异函数是地质统计学的核心部分。

Geostatistics is a rising interdisciplinary, and is being widely used in exploration and exploitation of petroleum.

地质统计学是一门新兴的交叉学科，在石油勘探开发中的应用日益广泛。

The main research objects of this theory that bases on the geostatistics are those random variables with certain variability on space.

该理论是建立在地统计学基础之上，其研究的主要对象就是那些在空间上具有一定变异性的随机变量。