In Huawei's dynamic environment monitoring system, it is at the data collection layer and can integrate the underlying components ____________ . The equipment through which information is transmitted to the monitoring software is ____________ .
The following ____________ belong to the characteristics of water-cooled chilled water air conditioners.
International Electrotechnical Commission ____________. The specified contact voltage limit is ____________V, And stipulate 25V. The following does not need to consider the prevention Safety measures to prevent electric shock.
The role of the lead-acid battery battery is to contain electrolyte, plates, separators, etc.