How is noise produced and what does noise mean

i.e. noise. It is a type of sound that causes irritability or is too loud and harmful to human health. Noise usually refers to those that are unpleasant, annoying.

The waveform of the noise is disorganized. From the perspective of environmental protection, all the sounds that affect people's normal study, work and rest, and the "unwanted sounds" of people on some occasions belong to noise. Noise pollution is mainly used in transportation, vehicle horns, industrial noise, building construction, social noise such as halls, loudspeakers, morning markets and people's loud talking.

In the Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution, which is formulated by our country, the phenomenon of exceeding the environmental noise emission standards stipulated by the state and interfering with the normal life, work and study of others is called environmental noise pollution. The decibel of sound is the unit of sound pressure level and is denoted as dB. Used to indicate the magnitude of the sound.

The "Noise Standards for Urban Areas of the People's Republic of China" clearly stipulates the maximum limits of environmental noise in five types of urban areas: recuperation areas, high-end villa areas, and high-end hotel areas, 50db during the day and 40db at night; In areas dominated by residential, cultural and educational institutions, 55db during the day and 45db at night; residential, commercial, and industrial mixed areas, 60db during the day and 50db at night; Industrial zone, 65db during the day and 55db at night; In the city, the area on both sides of the main and secondary road traffic arteries, inland waterways, and main and secondary railway lines is 70db during the day and 55db at night (night refers to 22 o'clock to 6 o'clock the next morning). According to the national standard, the noise in residential areas should not exceed 50 decibels during the day and 45 decibels at night.

So, what is the noise standard in an indoor environment? Paragraph 4 of Article 5 of the National "Environmental Noise Measurement Methods for Urban Areas" stipulates that when noise measurement is carried out indoors, the indoor noise limit is 10db lower than the standard value of the area. There are four main types of environmental noise in modern cities:

Traffic noise: It mainly refers to the noise emitted by motor vehicles, airplanes, trains, ships and other means of transportation during operation. The noise source of these noises is fluid, and the interference range is large.

Industrial noise: It mainly refers to the noise generated in industrial production and labor. Mainly from machines and high-speed running equipment.

Construction noise: It mainly refers to the noise generated by the construction site. In the construction, a large number of power machinery should be used, excavation, hole-making, stirring, and frequent transportation of materials and components, resulting in a lot of noise.

Noise in social life: It mainly refers to the noise generated by people in various social activities such as commercial transactions, sports competitions, parades and rallies, entertainment venues, etc., as well as the noise of various household appliances such as cassette recorders, televisions, washing machines, etc., which are generally below 80 decibels. For example, the noise of washing machines and sewing machines is 50-80 decibels, the noise of electric fans is 30-65 decibels, and the noise of air conditioners and TVs is 70 decibels.

Noise is an irregular sound that people don't like, which is generated by the friction or impact of the movement of objects, and the friction and impact must be reduced to prevent it. Add lubricating oil to the moving parts, adopt noise-reducing patterns (such as wheel patterns) on the contact parts of objects, add sound-absorbing materials, and build separation walls and noise-absorbing walls. Wish.

Noise is the sound that the emitting body makes when it vibrates without rules.

Noise (zào) is a Chinese character pronounced zào.

The noisy character is a morphophonetic character that consists of 口 (kǒu) and 喿 (zào). The mouth part indicates the sound of the noisy word, and the mouth part indicates the meaning of the noisy word.

The original meaning of the word "noise" or "noise" means a loud, noisy, withering, and restless sound. It can be used to describe a noisy, noisy scene of a crowd, such as "noise", "noise", etc. For example, "the noise of the market is loud and loud" refers to the noisy sound of people in a busy market.

In addition, the word noise can also be used to indicate the sound of an animal. For example, "bird noise" indicates the call of birds, while "insect noise" refers to the call of insects.

In modern Chinese, the word noise can also be extended to refer to some discordant, harsh sounds or noises. For example, "noise pollution" refers to the excessive and excessive noise in the environment that affects people's health and tranquility.

In short, the word noise in Chinese mainly means a loud and noisy sound, which can be used to describe a noisy crowd, the sound of animals, and some discordant and harsh sounds. The specific meaning needs to be understood according to the context.

Noise (zào) is a Chinese character that has the following meanings:

Hustle, noisy: The most common meaning of the word noise refers to noisy, noisy sounds. It can be used to describe people's noise, noise, such as "noise", "noise". For example, in a busy city center, the sound of vehicles, crowds and advertisements mingles into a single noise.

Animal Voices: The word noise can also indicate the sounds of animals. For example, "bird noise" refers to the call of birds, while "insect noise" refers to the call of insects. This usage is mostly found in literary works or to describe the natural environment.

Harsh, discordant sounds: The word noise can also be extended to refer to some harsh, discordant sounds or noises. For example, noise pollution refers to the excessive, excessive noise in the environment that negatively affects people's physical and mental health and quality of life.

To sum up, the word noise mainly means noisy and noisy sounds, which can be used to describe people's noise, noisy sounds, animal calls, and some harsh and discordant sounds. The specific meaning needs to be determined according to the context.

Noise pronunciation: zào

Detailed Definition: Verb.

1.Shape sound. 2.Same as the original meaning.

Another example: noise (tweeting); Noisy sky (bird name. i.e. Skylark) talk type.

3.Loud noise.

In terms of slander, Zhenliang is jealous, and Gao Qi is noisy. —Han S. Wang Chong, "On Balance".

Another example is to quietly erect: noisy chase (shouting and expelling); Noisy baba drink (dialect. Wow, whoa, whoa, noisy (noisy shouting); noisy (noisy); noisy thorns (boiling); noisy nozzle (multi-mouth); Noise (shouting; There is a lot of talking); Noise cutting (stringed instruments, large and small strings make different sounds).

Example sentences: 1There was too much noise in the house.

2.Cars honked indiscriminately, and the city was noisy.

3.Workers had to wear earplugs to endure the deafening noise in the factory.

4.He became famous when he published the book.

5.Yang Yuelou is a famous actor in a Peking Opera troupe, and she is famous for her acting skills and appearance.

6.He is the red card boy with Feng Laiyi, who was famous when he picked the crown of the flower queen a few years ago, and he was a wonderful person coveted by princes and princesses.

It has attracted a lot of attention due to its high reputation.