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Grundfos' NoNOx pump injects units of urea so precise that the catalytic converter is able to remove most of the NOx content from engine exhaust. Grundfos的NoNOx泵对于注射尿素的注射单位设计的非常精确，所以催化式排气净化器能够将绝大部分的NOx物从引擎排气装置中清楚出去。