EMC: \ x0d \ The equipment does not cause interference to the environment, and the equipment can resist the interference of the environment. \x0d\EMC includes EMI and EMS. \ x0d \ EMI: \ x0d \ refers to any electromagnetic phenomena that can degrade the performance of equipment or system, and refers to the interference of equipment to the environment. \ x0d \ x0d \ EMS: \ x0d \ refers to the performance degradation of equipment or system caused by electromagnetic interference, and refers to the ability of equipment to resist environmental interference.