Chai lan gao (4 risultati)

paperback. Condizione: New. Language:Chinese.Paperback. Publisher: China Agricultural.

paperback. Condizione: New. Language:Chinese.Pages Number: 119 Publisher: Golden Shield Pub. Date :2000-09-01 version 1. This book introduces the corn. sweet potatoes and millet overview of the biological characteristics of the environmental conditions. to be fat fat absorption characteristics and fertilization of new technology. Contents of the concise. easy to understand. scientific. practical. easy to operate. For the majority of farmers. agricultural scientists and agricultural grass-roots institutions of profession.…

Soft cover. Condizione: New. Language:Chinese.Author:LIU GUI SHEN CHAI LAN GAO JU ZHENG CHUN.Binding.Publisher:Shandong Science and Technology Press.

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2020-03-01 Pages: 172 Publisher: China Electric Power Press The main content of this book includes an overview of the urban rail transit traction power supply system. the main equipment of the substation. the traction substation. the contact network. the motion system. and Experimental training project.?Aiming at the structure and composition of the urban rail transit power supply system. this book introduces basic theoretical knowledge. common equipment.…