PMLP type plane series chain plate debris removal unit offers wide selection of transmission speed and working range and is of high working efficiency and has variable debris removal width.
PMLP型系列平面式链板排屑机，切屑输送速度选择范围大，工作效率高，有效排屑宽度多样化，可提供充足的选用范围。
The parallel-connection and variable-speed operation characters of the centrifugal pump groups are studied by conics fitting of the character curves in the high efficiency area.
通过对离心式水泵高效工作区的性能曲线进行二次拟合，分析了离心式水泵机组并联调速运行特性。
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