Urgent need for household appliances expository essay essay, required to describe the appearance, fu

"Prince Charming" in the box

I have inverter, noise reduction, energy saving, quick-freezing and other technologies in one, and all technologies cooperate with each other, and the performance is more superior than ordinary refrigerators. I have a unique day and night frequency conversion function, which can run at low speed at night according to the change of time, creating a better living and resting environment for you.

I have a unique ice greenhouse that specializes in preserving fresh food and locking in nutrients, so that you can enjoy highly nutritious food anytime, anywhere.

I can automatically adjust the temperature level according to the temperature changes of the surrounding environment in the state of artificial intelligence, so you don't have to be frustrated because you don't have enough time to adjust the temperature of the refrigerator and the food you take out is too frozen to fit into the pan.

I also have an over-temperature alarm device so that I can know the abnormality in the refrigerator, how about it, think about it!

My biggest and most thoughtful feature is low consumption, you probably know that people are worried about high electricity bills nowadays! But with me, you don't have to worry, the usual household refrigerator consumes volts, but I have less volts, how about it, amazing!

Now that I've introduced myself, everyone should know me! Just because of my features.

I have a Galanz microwave oven at home, although it is not too big, but it has many functions, it can steam rice, can barbecue meat, the most common is hot dishes, the time is short and will not lose nutrients.

This microwave oven is rectangular in shape, about 20 centimeters high, about 40 centimeters high, and has a large "glass window" through which you can see the inside.

On the right side of the microwave oven there are two knobs, the top one is a timer, which can be adjusted to a maximum of 30 minutes, and the other adjustment knob is used to adjust the heat, which can be adjusted to large, medium and small, and can also be used to bake things.

If it is the leftovers at home that need to be heated, just put the dishes in, time for 3 to 5 minutes, just listen to the "buzzing" sound, it starts to work, and when the time is up, the "bell" sounds, the small door of the microwave oven automatically opens, and we can take the dishes out at this time, hot.

The microwave oven brings convenience to our lives, it is green and time-saving, and we all love it very much!

In our home, there are many self-used electrical appliances, which bring us to life

Convenient. But I still like my refrigerator, which not only looks good, but also has a lot of functions.

The refrigerator is "wearing" a milky white coat, like an angel in white, standing firmly at the foot of the wall. It gives a sober and fresh feeling. It's a head taller than me! It is rectangular in shape, about two meters high and half a meter wide.

The refrigerator is divided into two floors: the upper level is the freezer compartment and the lower level is the cold room. When you open the door of the freezer, a thin veil-like "mist" rushes towards you, making people feel the slightest bit of distraction, so clear and comfortable.

Leftovers are stored inside, as well as two ice boxes. In the scorching sun, my sister and I often put homemade ice in it, or take out a piece of ice from here and touch it to cool down.

The refrigerator room has many functions and can refrigerate many foods: the refrigerator is divided into three layers: the first layer is composed of a nest of small holes, which is used to put eggs, and the eggs are stable and fresh; The second layer of mom is used to put chicken, duck, fish, meat and other delicacies and snacks.

Refrigeration makes food fresh and does not deteriorate; On the third floor, you can put some drinks, fruits, biscuits and other small foods, and put them on top of it, so that I drool.

After listening to my introduction, you will definitely think that my refrigerator is not small! It's a good helper for my family.

Last month, Dad bought a standing air conditioner from the store. On the same day, Dad invited the decorator to the house to install it. By 6 p.m., all the air conditioners had been installed.

The decorator immediately carried out the commissioning. He plugged the plug into the power box, then took out the remote control from the box, pressed a few buttons, and a cool wind sprayed from the air conditioner. He then pointed to some of the buttons on the remote control and made a brief introduction:

Automatic, refrigeration, heating, dehumidification, air supply, ......In the summer, we generally use refrigeration. Automatic, dehumidification, and air supply are not commonly used. Both horizontal and vertical swings are buttons that control the direction of the wind.

If you press the key to swing horizontally, the black blades will swing from side to side. If you press the key to swing vertically, the white blades will swing up and down.

After the renovation staff left, I took a closer look. It has many advantages and disadvantages: there is a screen on the air conditioner, which shows the temperature of the room, the schedule and other items; The air inlet under the air conditioner is relatively large, and the heat absorbed must be very large; The color of the air conditioner was pure, without a bit of variegation.

The disadvantages are that the air conditioner on the air conditioner is very small, and the air conditioning released must be less; There will be a noise when the air conditioner is just turned on, and it will be annoying to listen to it more. Because it's fresh, we don't feel annoyed anymore.

The night we bought the air conditioner, our whole family slept very comfortably. I thought: this year the air conditioner comes to my house, and we will sleep sweeter than usual!

Electric lamps are artificial lighting appliances that use electricity as an energy source, and electric lights convert electrical energy into light energy to illuminate human beings at night or in a dark room.

Electric lamp is to convert electrical energy into light energy, to provide lighting equipment, its working principle is: electric current through the filament (tungsten filament, melting point of more than 3000) when the heat is generated, the spiral filament continues to gather heat, so that the temperature of the filament up to more than 2000, the filament in the incandescent state, like the red-hot iron can shine and emit light. The higher the temperature of the filament, the brighter the light emitted.

Therefore, it is called incandescent lamp.

From the perspective of energy conversion, when the lamp emits light, a large amount of electrical energy will be converted into heat energy, and only a very small part can be converted into useful light energy.

Tungsten filament can remain stable at a very high temperature without melting, but directly sublimated into gas, and when the lamp is turned off, the temperature drops, and tungsten gas is re-condensed into a solid covered on the inner wall of the bulb, because tungsten is a black solid, so after the incandescent lamp is used for a long time, tungsten repeatedly accumulates on the inner wall of the lamp, and the bulb will turn black.

Electric lamps have a lifespan, generally after blackening, the life is not long, the black bulb will affect the quality of lighting, and it is not beautiful, so it is better to replace the black bulb as soon as possible with too long time, especially in a conspicuous position, the place that needs good lighting should be replaced as soon as possible, so as not to suddenly break the bulb without a spare bulb, affecting the normal lighting and life, causing various inconveniences.

The life of the lamp is related to the temperature of the filament, because the higher the temperature, the easier it is for the filament to sublimate (tungsten directly becomes tungsten gas), when the tungsten filament is sublimated to a relatively thin and thin one, it is easy to burn out after being energized, thus ending the life of the lamp. Therefore, the greater the power (wattage) of the lamp, the shorter the lifespan.