The pneumatic control circuit, which is consisted of the pressure regulator component, the direction valve and the cylinder, is the most commonly used circuit in the industrial automation.
气动自动化系统是实现传动与控制的主要方式之一，其中由稳压元件、换向阀和气缸等所组成的气动控制回路更是工业自动化中常用的回路。
As a component and regulator in forest ecosystem, plant pathogens play an important role in forest dynamics.
植物病原菌作为森林生态系统的重要组成成分及调控因子之一，在森林动态中扮演着重要的角色。
As a component and regulator in forest ecosystem, plant pathogens play an important role in forest dynamics.
植物病原菌作为森林生态系统的重要组成成分及调控因子之一，在森林动态中扮演着重要的角色。
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