The press takes use of advanced two-way cartridge valve system and imported electric pump technology which can realize double closed loop control of pressure and flow rate.
液压系统采用了先进的二通插装阀系统、进口高性能的电子泵技术，实现了主缸压力与流量的双闭环控制；
At the first step, all the tie breakers are closed to form a meshed network and then an optimal matching loop flow is calculated to determine the breakers most suitably to be opened in each loop.
算法主要由两步构成：在第一步计算中合上所有联络开关：然后计算全网的最优匹配回路流以决定每个回路中最适合打开的开关。
Such endeavor promoted the substitution of the traditional and unidirectional linear economy for the material closed-loop flow circulation economy having material circulation utilization as its core.
这种努力促使以物料循环利用为核心、物质闭环流动型的循环经济，取代传统的、物质单向流动的线性经济。
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