美国买家对三缸、四缸动力的车会有什么样的反应？
And how will American customers react to a succession of three and four-cylinder cars?
通过流量控制缸体作步进式运动，步进缸拖动中子吸收元件，控制核反应的进行。
The cylinder will move step by step by controling flow, then the cylinder drives the neutron absorber and controls nuclear reaction.
水力步进缸系统是以流体动压为动力的反应堆新型控制棒驱动装置。
A hydraulic step cylinder system (HSCS) used as a new kind of nuclear control rod driving system is driven by dynamic pressure.
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