1·This paper analyzes technical requirements, basic structure, key technology, manufacturing process of grid strip revolution paraboloid antenna , and provides some valuable methods.
本文对栅条式旋转抛物面天线的技术要求、基本结构、关键技术、制造工艺等问题作了详尽分析，提供了一些有实用价值的方法。
3·The condenser pump frequency conversion revolution of thermal Power generator Units is a technical direction for energy-saving of the power industry.
火力发电机组凝结泵变频改造是电力行业节能降耗的一个技术方向。