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(1) KQW (ISW) horizontal centrifugal pumps are suitable for industrial and urban water supply and drainage, pressurized water supply for high-rise buildings, garden sprinkler irrigation, fire booster, long-distance water supply, HVAC cycle, bathr…

Reading: Because of the difficulty of employment, 120 professional subjects in universities in Liaoning Province were canceled. At the same time, there are also a large number of new "professionals", and precision instrumentation has become one of th…

Cars have become very popular in people's daily lives. It is not unusual for people to see them. But have you ever seen a car that you can only see under a microscope? This is the only nano-vehicle that was invented by scientists in the Netherlands. It is …