p.a. system

The predominance area diagram of electron activity ( p ε) as a function of pH for chlorine system with chlorate ion, chlorine dioxide, chlorous acid, chlorite ion, hypochlorous acid, hypochlorite ion, molecular chlorine and chloride ion has been constructed.

在电子活度（pε）和pH优势区域图上，建立了包括氯酸根、二氧化氯、亚氯酸、亚氯酸根、次氯酸、次氯酸根、氯气和氯离子的氯体系多元平衡模式；

The percentage of positive cell P/ A (%), average optical density ( AOD) and positive level index ( PLI) were assessed by micro image analyzing system.

免疫组化法检测p53蛋白表达，用显微图像分析系统测定阳性细胞百分率（P/A）、平均光密度（AOD）及阳性水平指数（PLI）。

A Further Study on the P. E. Institutes' Teaching Management System

体育院校教学管理系统的进一步研究

The p-q-r instantaneous power theory is introduced, based on which a direct control strategy of UPQC ( Unified Power Quality Conditioner) is presented and its implementation in non-linear and unbalanced three-phase four-wire system is discussed.

阐述了p-q-r瞬时功率理论的原理，提出了基于该理论的统一电能质量控制器（UPQC）的直接控制策略，探讨了将其用于三相四线非线性及不平衡系统中的实现方法。

A New Method of Calculating B-P Probability Importance of Non-monotonic correlative System

非单调关联系统中概率重要度的新计算方法