德州科技信息网 术，可以使传统的拉模铸造（die castings）工艺生产的产品变得更加牢固和环保。这两种技术是：动态门控系统（dynamic gating system ，DGS）和高级触变冶金（Advanced Thixotrotic Metallurgy, ATM）金属熔体导
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本文从动态特性以及经济性和可靠性的角度对液舱阀门控制系统进行了较为详尽的研究。
In this paper, the fluid hold valves' control system is studied in detail from aspects of dynamic characteristic and economy and reliability.
其次，建立了两种主流液舱阀门控制系统的数学模型，分析了它们的动态特性，指出了它们的适用范围。
Secondly, the mathematical models of the two mainstream fluid hold valves' control systems are given, dynamic characteristic is analyzed, applicable range of them is indicated.
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