Chen dong lin liu jun (3 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2015-04-01 Pages: 269 Language: Chinese Publisher: Higher Education Press. the motor and electrical control technology and skill is the reform of secondary vocational education curriculum materials. divided into two areas AC induction motors and DC motors . In the field of AC induction motor. according to the structure of traditional knowledge systems. theoretical knowledge and practical skills together to form a five. namely basic articles. papers start. reverse articles.…

paperback. Condizione: New. Paperback. Pub Date: 2021-03-01 Pages: 233 Language: Chinese Publisher: Higher Education Press This book is a curriculum reform textbook for secondary vocational education. It mainly introduces AC asynchronous motors: The basics introduces the structure and principles of asynchronous motors. and the start-up chapter . Reversal chapter. Speed ??regulation chapter. Braking chapter and expansion chapter. respectively introduce the principle analysis of three-phase asynchronous motor starting. re.…

paperback. Condizione: New. Paperback. Pub Date: 2022-10-01 Pages: 303 Language: Chinese Publisher: China Water Conservancy and Hydropower Press Hard Rock Brittle Fracture Mechanism and Engineering Effect mainly discusses hard The brittle failure of rocks has been deeply discussed. and with the goal of serving the T process. systematic research has been carried out around the brittle failure of high-stress hard rocks. and the mechanical properties and deformation and fracture characteristics of various hard rocks under .…