结果表明：步进缸的设计参数（重量、对孔尺寸）确定其静态保持流量范围；
The results is:the design parameters of step cylinder, weight, size of opposite hole et al, determines the flow margin.
排气孔流量和迷宫流量所占的份额很小，其对步进缸静态保持流量的影响也很小；
The flow through the exhaust hole and maze was relatively small, and the effect on the static holding flow was also small.
随着温度升高，水力步进缸的最小静态保持流量和最大静态保持流量都逐渐增大，这与实验结果吻合。
The maximum and minimum static holding flow increased with the increase of temperature, which agreed well with the experimental results.
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