Video signal transmission generally adopts direct modulation technology and takes the form of baseband frequency (about 8MHz bandwidth). The most commonly used transmission medium is coaxial cable; coaxial cable is specially designed to transmit video signals, and its frequency loss, image distorti ....

Abstract Technological innovation can often lead to an industry that affects and even changes the world. In the middle of the last century, the first industrial robot was born in the United States. Today, robots are promising in the fields of industry, home services, medical care, education, ....

Life should not be busy, time is not used to catch up, let time slow down, enjoy the moment, is the source of continued struggle. The budding wall clock is launched by the famous local original brand “Unexpected Design”. The material used for the wall clock is high ....

If the crystal clear and bright surface is dirty, it will not only affect the beauty of the crystal lighting itself, but also weaken the refractive index of the crystal lighting. Try the following cleaning and maintenance methods when cleaning crystal lighting: 1. One crystal can be removed, ....

It is required that the product and packaging container be used multiple times in its original form. The principle of recycling is intended to be controlled from the output side, requiring that the produced items be reconverted into usable resources upon completion of their use. Resource recycling ....

With the changes of the times, the consumer groups are getting younger and younger. The proportion of consumers in the current wooden door market after 80 and 90 has exceeded the balance point. The consumption survey for the “8090” consumer groups shows that the at ....

Dry weather Entering the autumn and winter, the humid climate in the south has become more and more dry. People's skin becomes tight and water-deficient. Similarly, the wooden furniture in the house is not much better than people. They are also afraid of drying, and they a ....