Finally, the drag force formula about dilute phase conveying is provided.

给出了稀相输送阻力计算公式。

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Because of the PET chip yield reduce, in order to reduce the energy consumption, the PET chip conveying system was changed from dense phase conveying to dilute phase conveying.

由于PET切片产量减少，为了节约能耗，PET切片输送系统由密相输送改为稀相输送。

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Based on the fast numerical capability of computer, the program of module for dilute and dense phase pneumatic conveying system is made, which makes the efficiency in high.

结合计算机高速运算的性能，对稀相、浓相气力输送系统设计的系统模块进行了系统的编写，极大地提高了系统设计效率。

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