In the production process of kiwifruit, one of the leaf diseases most susceptible to infection is kiwifruit leaf spot. This disease is also called brown spot disease. It is a kind of disease caused by the spore infestation of the disease, in the diseased orchard, Diseased leaf ra…
In February, the sales volume of passenger cars dropped significantly from last month, with a slightly lower year-on-year decline. Chinese brand passenger cars sold a total of 639,800 units, a decrease of 37.39% from the previous m…
Tire industry also has a special supermarket chain! In recent days, the wheel warehouse professional tire chain supermarket officially opened, it is understood that this is Qingdao, and even the province's first proposed to operate tire-based professional tire supermarket. After …
Mineral resources are the material basis for the survival and development of modern human beings. Even in the rapid development of information technology, mineral resources still play an irreplaceable role in human daily life. Crushing and grinding of mineral resources processing work is an…
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Experimental Study on Precision Forming of Gear Cold Extrusion Zeng Xianwen, Ren Xianyu, Li Da, Li Jiyun, Teng Hongchun (Department of Forging and Pressing, Jilin University of Technology, Changchun 130025, Jilin, China). Constrained diversion has many advantages in improving filling and o…
The appearance of micro-nano bubble and its characteristics different from ordinary bubbles make it show excellent technical advantages and application prospects in the fields of water treatment and the like. Hangzhou Laurel Green Technology Co., Ltd. independent research and dev…