帮看看英语作文有误病句~16The utility model relates to a paraffin separa

1个回答

  • The utility model relates to a temperature controlled switch, comprising a thermal dual-metal sheet, an adjusting mechanism and a set of electrical contacts. The utility model is characterized in that the electrical contacts are normally open, and the contacts convert original off-state into on-state when the temperature of the thermal dual-metal which is heated goes up to the designated value. With an acoustic device,an acousto-optical device or a corresponding acting device, the utility model can be used for temperature control alarming, dangerous alarming or security protection and energy-saving operation for the heating device, the cooker which is heated or the water and food in the cooker, under the situation of various thermal sources such as electricity, coal , firewood, gas, oil, etc. The utility model has the advantages of simple structure ,low cost, convenience use ,and high efficiency . [#89209324#] The utility model relates to a safety power saving lighting lamp for machine tool aperation, comprising a universal ball lamp socket (1), a laminated board(2), a universal ball (5), a flexible snake skin lampholder(6), electric wires (7)and(8), a lamp cap(13), a transformer B-[1], full-bridge rectifiers D-[1]~D-[4], a capacitor C-[1] and a trichromatic fluorescent lamp. Instead of a 60w bulb,a 9w trichromatic fluorescent lamp is arranged on the utility model,saving 80% power.Compared with the existing lighting lamp for machine tool aperation ,the service life of the utility model increases to 7 times , and the light is softer . With a 10w power transformer, the loss is less .