pcv怎么读

based on the analysis of the model of brushless dc motor servo control system, pcv ( proportional constant variable) approach is presented to achieve accurate servo tracking in the presence of load disturbance and plant parameter variations.

在分析正弦波型直流无刷电动机数学模型的基础上，采用比例等速变速控制策略（PCV）设计控制器，应用于正弦波型直流无刷电动机位置伺服系统。

according to the antigenicity and genetic constitution, pcv has two types, one was pcv1 and the other was pcv2.

根据PCV的抗原性和基因组成不同，将其分成两种不同的基因型即PCV1和PCV2。

The procedure using aluminon as the color reagent was applied to the determination of the fraction of aluminum in soil solution and the results agreed well with Driscoll's PCV method.

阳离子树脂交换分离铝试剂光度法更适合于测定含铁量比较高的土壤溶液中的铝形态。