This paper reviews the fuel cell technology and the status of its development. The working principles, features and the main types of fuel cell are introduced in detail.
本文综述了燃料电池发电技术及其研究开发现状。对各种类型燃料电池的原理、特点及其发展趋势作了总的介绍。
The remote control system of submarine's main Marine engine is the key part of submarine's main power system and has various working status.
潜艇主机遥控系统是潜艇主动力系统的关键部件，其工作状态和接口信号十分复杂。
Based on this, the principle, analytical model and main functions of the screw pumping well working status macroscopic control chart are described in detail.
为此，详细介绍了螺杆泵油井工况宏观控制图的原理、分析模型和主要功能。
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