失败的防范政策在通过被期待已久的大修整后，又一次生机勃勃地成为本周头条新闻。
It sprang into the headlines again this week with the long-awaited overhaul of the widely unloved Prevent strategy.
本文主要通过断口分析，找出了Z 12v190 B型柴油机大修后导致曲轴断裂失效的主要原因，并提出了相应的改进措施。
By fracture analysis, this report presents the main causes for fracture failure of the crankshaft on overhauled Z12V190B diesel engines and puts forward some appropriate protective measures.
通过改进设计，降低峰值应力，既延长了大修周期，又延长了使用寿命。
Not only the overhauling period but also the fatigue life is extended by improving the design and reducing the peak stress.
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.
通过现场施工及科学试验，得到了水平井大修施工的主要施工参数和技术手段，为今后水平井大修积累了经验。
Through site work and scientific experiment, we have gotten the main work parameters and technology methods and we have accumulated some work experience for the level well workover.
通过采用新型排管方式、合理调整冷却管支撑间距，并同时更换冷却管材的方法在大修期内对凝汽器进行了改造。
By using new type tube arrangement, rationally adjusting support spacing of cooling tubes, and replacing cooling tubes, the old condenser was retrofitted in overhaul period.
通过采用新型排管方式、合理调整冷却管支撑间距，并同时更换冷却管材的方法在大修期内对凝汽器进行了改造。
By using new type tube arrangement, rationally adjusting support spacing of cooling tubes, and replacing cooling tubes, the old condenser was retrofitted in overhaul period.
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