The first question of power systemclassification voltage control is partition of control area.
电力系统进行分级电压控制的首要问题就是对系统进行控制区域的划分。
2
Yangtake structural belt is located in the west of Tabei uplift and belongs to Kuche petroleum system in petroleum systemclassification.
羊塔克构造带位于塔北隆起的西端，属于库车油气系统的前缘隆起带。
3
Make a whole water system as a basic cell, discuss the encoding method, classification factor and classification criterion used in water systemclassification.