In electronics, the ability of the CRT phosphor dots to withstand local over- heating due to the conversion into heat of the residual energy of the electron beam, i.e. that part of the electron beam energy that is not converted into visible light.

• 在电子学中，指阴极射线管的荧光粉承受局部过热的能力，这种过热是由于电子束的残余能量，即电子束没有转变成可见光的那部分能量，转变成了热。