为保证施工顺利进行，且提高安全性，对正反导井及扩挖系统进行了多项技术改进，提高了安全系数。
The some techniques of guide shaft and expansion excavation are improved for assure the successful construction and raise the safety coefficient.
结果：经过合理的输液输血，为手术的顺利进行提供了保证。
Results Successful operation could be ensured by proper infusion and transfusion.
为保证实际数控加工的顺利进行，需要采用仿真加工技术对数控加工代码的正确性进行检验。
To ensure the trouble free operation of CNC machining process, the correctness of CNC machining programs need to be verified by means of the simulation machining technology.
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