Published by China Metrology Publishing House Pub. Date: 2003-0, 2000
ISBN 10: 7502616837 ISBN 13: 9787502616830
Language: English
Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Language:Chinese.Pages Number: 178 Publisher: China Metrology Publishing House Pub. Date :2003-01. This book introduces the brief history of the vacuum switch. the future development trends and the basic theory of the vacuum switch points. and focuses on the vertical and horizontal magnetic field of the extinction theory. the vacuum breakdown mechanism. dielectric strength and arc quenching process. Also describes the vacuum switch at home and abroad are developing new products. high-voltage .
Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Paperback. Pub Date: 2012 Pages: 32 Language: Chinese in Publisher: People's Communications Press specification ultrathin wear layer design. construction. quality assessment. to ensure the quality of the project to develop local standards of Liaoning Province (DB 21T 1995 - 2012): ultra-thin wear layer design and construction of technical specifications. Ultrathin wear layer is applied to the preventive maintenance of the highway asphalt pavement. a road and other graded highway reference use.