zhang wang yong feng chao (3 Ergebnisse)

paperback. Zustand: New. Paperback.Pub Date:2022-12 Pages:288 Language:Chinese Publisher:China Electric Power Press 500kV Substation Secondary Circuit Analysis analyzes the secondary circuit of 500kV substation in detail. The book has 16 chapters. and the main contents include an overview of 500kV conventional substations. secondary circuit diagram recognition. 35kV station transformer. reactor and capacitor secondary circuit. 220kV line secondary circuit. 220kV busbar protection secondary circuit. 500kV line seconda.

paperback. Zustand: New. Paperback. Pub Date :2014-05-01 Pages: 296 Language: Chinese Publisher: China Youth Publishing House. the elderly learn computer and photography one would see (selling large print full color graphic version). a total of 24 chapters. from 1 to 12 chapter is part of computer knowledge and skills. 13 to 24 chapters for the knowledge and skills photography section. Which can be divided into three chapters computer parts. 1 to 3 details the basics of computer-related; 4 to 7 introduces the basics .

paperback. Zustand: New. Language:Chinese.Paperback. Pub Date: 2020-09-01 Pages: 277 Publisher: China Agricultural Science and Technology Press In recent years. my country has carried out actions to control the amount of pesticides and fertilizers. environmental protection. and efficiency.?The management of vegetables has also been improved from the previous pollution-free to the level of green management.?Continuously reduce the use and variety of chemical pesticides through standardized comprehensive measures. and .