如果流量对大约40%的定格流量降低，那HPRT停止产生动力和一个下模能被强制加诸于主要的螺丝起子。
If the flow drops to about 40 % of the rated flow, the HPRT stops producing power and a drag can be imposed on the main driver.
如果不能使用起吊螺丝孔，应在入子上作撬模杆进入的斜槽。
If jack screws cannot be used than angled slots need to be installed for pry bar access.
在上模节流棒槽内装入节流棒，将节流棒调节螺栓装配进节流棒的螺丝孔中，再装配上压块。
Mount restrictor bar into the restrictor bar groove of upper die, mount adjusting bolt for restrictor bar into the bolt hole in the restrictor bar, then mount lower press block, upper press block.
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