通过实例对电厂大修时常见的汽缸螺孔损坏后进行修复问题的详述，提供了一种处理该类问题行之有效的解决方法。
This paper based on a unit at a power plant overhaul cylinder thread repair damage after the success of the case details provide a deal with issues such effective solution.
研究了脱壳油菜籽挤压系统参数（套筒温度、螺杆转速、螺头至模板距离、模孔长度、模孔孔径）对从榨笼中挤压出的菜籽油的游离脂肪酸、碘值和油脂稳定性的影响规律。
The influence regularity of the parameters of rapeseed extrusion system on free fat acid, iodine value and stability of rapeseed oil extruded from extract cage of extruder was studied.
所述的装饰上盖与下底上至少设有两对固定螺孔，其间采用螺栓连接；
The decorative upper cover and the lower bottom are at least provided with two pairs of fixing screw holes which are connected by screw bolts.
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