词汇	when will you need it
释义	when will you need it 您什么时候需要
随便看	electronic heat control electronic heater electronic heating Electronic heat management electronic heat sealer electronic heat sealing electronic helicopter electronic high voltage circuit Electronic-hydraulic proportion electronic-hydraulic proportional control electronic-hydraulic proportional valve electronic image intensification electronic image management system electronic highway Electronic history electronic hit indicator electronic hoist scale electronic hole conduction elec-tronic hole conduction electronic hole opener electronic home electronic home banking electronic homework electronic hopper scale electronic horizontal situation indicator