Class 2 reservoirs do not develop much in this area, while Class 3 reservoirs develop in a large area.
目前萨南油田南四区适合聚合物驱油的一类油层剩余油储量逐年减少,聚合物驱产量不断递减,该区二类油层不发育,三类油层大面积发育,因此三类油层注聚是实现产量接替的有效途径。
7m2, and can satisfy the requirement of area precision of forest inventory for designing.
采用后处理差分的方法,研究了手持GPS在三类调查中的面积精度。
Comparative study of the situtaion on three-kind school students’ mental health from divorced families;
从总体上看 ,三类中学的离异家庭子女在学习焦虑、冲动倾向、说谎量表上存在显著性学校类别差异 ;男生与女生在学习焦虑、孤独倾向两个分量表上达到较显著性性别差异 ;学校与性别交互效应并无显著性差异 ,学校主效应差异显
