double-ported valve
... double-porosity system 双重孔隙介质 double-ported valve 双孔阀 double-precision arithmetic 双精度运算 ...
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由于采用了双阀孔结构设计，在最大压差下排放凝结水的同时，还有一个为二次蒸汽系统设计的预设压差系统在工作。
Because of the dual-orifice design, there is a preset controlled pressure differential for the secondary steam system, while maximum pressure differential is available to discharge the condensate.
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