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["[Diía por día] Conocimiento básico de procesos (pregunta multiple elección)" ,"Al usar un bomba de pistón, se see que que se que el caudal es insuficiente, las razones que "A... las válvulas de entrada/salida no están herméticas o las primas están dañadas C. disminminuyó el número de oscilaciones B. el filtro está obstrierto o hay gas en el cilindro D...... las tres razones anteriores"]

2019-09-23View Original

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在使用往复泵时,发现流量不足,其产生的原因是( D)。 A.进出口滑阀不严、弹簧损坏 C.往复次数减少 B.过滤器堵塞或缸内有气体 D.以上三种原因

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