Published by China Agricultural University Press, 2016
ISBN 10: 7565510068 ISBN 13: 9787565510069
Language: Chinese
Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Paperback. Pub Date: 2016-01-01 Pages: 298 Language: Chinese Publisher: China Agricultural University Press bio-pesticides and their application Technology Answers (2nd Edition) systematically introduces the concept of bio-pesticides. classification and basic knowledge of relevant advantages and disadvantages. At the same time in the form of questions and answers on the current agricultural production commonly used in biological pesticides Basics Overview. biogenic insecticide. miticide. fung.
ISBN 10: 7502487379 ISBN 13: 9787502487379
Language: English
Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Paperback. Pub Date: 2021-04-01 Pages: 220 Language: Chinese Publisher: Metallurgical Industry Press Research on prevention and treatment provides effective methods and means. The existing hydrogeological data and accident causes of floor water inrush accidents show that more than 79.5% of floor water inrush accidents in coal mine stopes are related to structures such as floor faults. Faults and other structures can be regarded as geological defects in the surrounding rock of the stope. The e.
Published by Metallurgical Industry Press, 2021
ISBN 10: 7502487379 ISBN 13: 9787502487379
Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Paperback. Pub Date: 2021-04-01 Pages: 220 Language: Chinese Publisher: Metallurgical Industry Press Research on prevention and treatment provides effective methods and means. The existing hydrogeological data and accident causes of floor water inrush accidents show that more than 79.5% of floor water inrush accidents in coal mine stopes are related to structures such as floor faults. Faults and other structures can be regarded as geological defects in the surrounding rock of the stope. The e.