this paper resumptively introduces the gist of design of electromagnetism, structure and so on of the large synchronous motor driving mine winder.
概括了矿井提升同步电动机的电磁、结构等方面的设计要点。
firstly, it resumptively introduces theories of target market, marketing mix and wheel-loader marketing and supplies theory for bringing forward the market analysis and marketing tactics.
the main works of this thesis include:1. resumptively introduces classification, fabrication, optical properties, sensing principle and demodulating method of fiber grating.