How to control the pests and diseases of walnut trees

Precision agriculture is modern agriculture based on information and knowledge support. It is a knowledge-based agricultural management system. It is an important basis for accurate agricultural practice to quickly and efficiently collect information that accurately describes the.......

97 Bei Ben heavy truck trucks recently exported to Bolivia


Recently, 97 Beiben heavy trucks were exported to Bolivia and completed the handover. This project has been highly valued by Beibei Company of China North Industries Group since the signing of the contract in early 2011, and the Beiben optimal supporting system has been used in the chassi.......

Composition of dry box

Dry box assembly structure

Uses: Drying box for dry goods or dry heat sterilization. The constant temperature adjustment range, (50 ~ 200) °C (or (50 ~ 250) °C, (50 ~ 300) 0C); incubator for the cultivation.......

Pre-set method for operating the gear-type frame cutter


The basic method of tool design In the tool design process, the method of designing small teeth, large teeth and R39 arc teeth is generally adopted [1]. When designing the pinion small teeth, it is assumed that all the teeth of the cut gear are small teeth, and the small tooth shape is the.......