1, flow rate is the amount of fluid flowing through the effective cross-section of a closed pipe or open channel per unit of time, also known as instantaneous flow. When the amount of fluid expressed in volume is called volume flow, when the amount of fluid expressed in mass is called mass flow.
2, access to the total network access has been full that the current connection of the WIFI has reached a predetermined number of devices, and can not access the new device, commonly known as the router is set up only to connect to the N device, is now enough, so the new device can not be connected.