unidirectional current meaning in English

单方向性电流
单向电流
直流电

The products range from fractional horsepower to 18 , 700kw , from conversion of alternating to unidirectional current , from improved motor to conventional motor , which provide access to multiple choices for the general and specific application in manufacturing and treatment
从很小功率到18 ， 700kw 25 ， 000hp ，各种款式的交流和直流标准，改良和常规的电动机为通用和特定用途的制造和处理需要提供了多种选择。