| 摘要 |
Title: Microwave Ovens A microwave oven has electrical resistance heating means (38a, 38b), a fan (36) for passing air over the heating means and through the oven cavity (10) and a magnetron for delivering microwave power to the oven cavity. The oven is intended for use in commercial establishments such as cafés, petrol filling stations or railway stations and is capable of occupying a stand-by mode pending insertion of a food item into the oven cavity (10). During the standby mode the electrical resistance heating means are energised at a lower power level (continuously or in pulses) in order to provide a reservoir of heat which speeds the cooking process. The oven is capable of occupying the stand-by mode continuously.
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