基于排气背压法判断DPF再生时机，阐述其再生控制原理。
Based on method of exhaust back-pressure to judge DPF regeneration time, working principle of regeneration control system was introduced.
水桶爆破法是根据接触爆炸的作用原理，利用水作为背压介质，对薄型结构进行控制爆破的一种方法。
Bucket blasting, which is based on the principle of touch blasting and takes water as a backpressure medium, is a controlled blasting method for thin plate structures.
介绍了背压式汽轮机积盐积垢的处理方法—过饱和蒸汽法，通过清洗使汽轮机的出力率得以提高。
A treatment method of super-saturation steam for deposited salt in steam turbine is introduced, output of the steam turbine is therefore improved through purge.
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