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The transformation of the screw manufacturing industry is a miniature of the digitalization of China s traditional manufacturing. Its experience proves that conforming to the trend of digitalizatio.
By Xu Leipeng Screws are unobtrusive, but they are indispensable to industrial production. They are used in the manufacturing of almost everything, from small articles of everyday use such as watches and mobile phones, to big and even gigantic items such as automobiles, high-speed rail and spacecraft. Screws, which are…
Optimal allocation of water resources is an effective way to solve the supply and demand contradiction between water resources and water users. Recently, the rapid economic and social development of Handan has significantly increased water demand in various industries. Superimposed on the reduction of incoming water in upstream rivers and the limitation of the total amount of groundwater extraction, a large number of water sources such as South-to-North Water Diversion, Yellow River Water Diversion, and Weihe River Water Diversion are used to replace domestic and industrial water. In support of Handan’s dynamic supply and demand of water resources, the transported water was generalized as a virtual reservoir and introduced into the GWAS model. The allocation results show that the total water shortage volume and rate of Handan was 527.60 × 106 m3 and 17.92% in 2025 at a P = 50%, respectively. Water shortage was concentrated in the primary industry. The allocation res