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.
利用数值模拟软件分析了二次空气对高温低氧空气燃烧污染物排放的影响。
Using numerical simulation software, the paper analysis the influence of secondary air to the pollutant discharged in high temperature and low oxygen air combustion.
通过工况法排放测试证明，加装二次进气装置可以有效降低摩托车排放。
According to the emission test results, the emissions from motorcycles can be reduced effectively after fitted with the secondary air-in devices.
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