Therefore a 3-parameter flow meter is used to replace the upper pressure meter, on the other hand, a seal section isd.
对此，一方面采用三参数流量计代替上压力计，另一方面设计了泄流式验封密封段。
The pump consists of three sections from bottom to top: the hydraulic section, the shaft seal section and the motor section.
主泵由三个部分组成(由下而上)：水力部件，轴密封部件和电机部件。
Fit side wind ow seal to the rim of the side wind ow section by hand.
用手将侧窗密封件装配到侧窗部分的缘边内。
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