band changing
4.The 2mm-band microwave scanning heterodyne radiometer (MSR) in the HL-1M tokamak was upgraded by changing the BWO and upgrading the high voltage power supply and control system. Meanwhile,the IF amplifier of MSR with high gain,broadband and low noise has been developed.
6.Changing your own mood requires methods that gently refocus your attention in ways that genuinely improve your inner life, not just slap behavioral Band-Aids over your pain or frustration.

