方向鉴别法不仅可以用于换热器传热试验数据处理，也可用于压力降试验准则方程的求解。
The method of direction distinguishing not only is that used in heat transfer data processing of heat exchanger, but it is also used to find the solution of norm equation for pressure drop test.
试验结果表明，新型滤器的压力降完全符合规定要求，原始滤清效率为63.04%，而传统滤器的原始滤清效率仅为60%。
The test results show that the pressure descend of new filter conform to the requirement of standard, the filtration efficiency is 63.04%, and the traditional filter is no less than 60%.
试验还考察了油浆灰分含量对过滤结果的影响及反洗处理后过滤器初始压力降的恢复情况，为生产性过滤装置的设计提供了试验依据。
Rational filter processing parameters were obtained. The influence of ash contents on filtration and resumption of initial pressure drop of the filter after blowing back were also investigated.
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