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Anonymous users2024-02-12One, the TV.
Television is a machine that uses electricity to disseminate optical information according to the visual persistence characteristics and visual psychology of the human eye. The TV is mainly composed of high-frequency head, audio head, sound channel, common channel, synchronous scanning channel, color control display and power supply.
Second, the radio.
A radio is a device made of mechanical devices, electronic devices, magnets, etc., which converts radio signals with electrical energy and can listen to the audio signals emitted by radio stations. Also known as radio, radio, etc.
Three, the horn. Trumpets are divided into several different instruments, a type of wind instrument.
The top is thin and the bottom is coarse, mostly made of copper. The other is a modern electroacoustic element, which is used to convert electrical signals into sound, also called loudspeakers. It can also be used to describe a person who advocates and propagandizes for others.
Fourth, the bell. Bell refers to a kind of bell that sounds by shaking, spherical or oblate (Christmas bells are bell-shaped) and has an opening in the lower or middle part, in which metal pellets or small stones are placed, and the style and size are different.
5. Clocks. A clock is a device for keeping time, as well as a precision instrument for measuring and indicating time. Clocks are usually distinguished by the size of the internal machine.
According to international practice, the diameter of the core is more than 80 mm, and the thickness is more than 30 mm. Those with a diameter of 37 50 mm and a thickness of 4 6 mm are called pocket watches.
Watches with a diameter of 37 mm or less.
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Anonymous users2024-02-11The sound coming from the mask.
Sounds coming from the mask Preparing items Cardboard, animal drawings, glue, scissors, erasers 1?Paste a drawing of an animal on cardboard and make an animal mask. 2?
The mother wears a mask with a puppy pattern on it and makes puppy barks. 3?Mom puts on a calf mask and makes a moo!
Moo! sound, mimicking the sound of a cow. A vessel that makes sound.
Sounds coming out of the mask (pictured) Prepare items Cardboard, animal drawings, glue, scissors, eraser 1?Paste a drawing of an animal on cardboard and make an animal mask. 2?
The mother wears a mask with a puppy pattern on it and makes puppy barks. 3?Mom puts on a calf mask and makes a moo!
Moo! The sound imitates the sounds and movements of a cow. 4?
The sound your baby makes to the mask. A clasp that makes a sound.
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Anonymous users2024-02-10Question 1: What objects in life make sounds Sounds from masksSounds from masks Prepare items Cardboard, animal drawings, glue, scissors, erasers 1?Paste a drawing of an animal on cardboard and make a household mask.
2?The mother wears a mask with a puppy motif and makes a puppy bark. 3?
Mom puts on a calf mask and makes a moo! Moo! sound, mimicking the sound of a cow.
The sound of the instrument that makes the sound coming from the mask (with photo) Prepare items Cardboard, animal drawings, glue, scissors, eraser 1?Paste an animal drawing on hard-bent cardboard to make an animal mask. 2?
The mother wears a mask with a puppy pattern on it and makes puppy barks. 3?Mom puts on a calf mask and makes a moo!
Moo! The sound imitates the sounds and movements of a cow. 4?
The sound your baby makes to the mask. A clasp that makes a sound.
Question 2: What can make a beeping sound in life This is simple:
That thing is a person. Ha ha..
Question 3: Grade 3, what objects in life can make the sound of the wind There are many objects in nature that can make the sound of the wind, such as conch. It can be emitted, and the wind can blow the leaves.
Question 4: In life, what else is the loudness of sound related to The loudness of sound is related to the spokes of the sound source: the larger the spoke, the louder the louder.
The loudness of a sound is also related to the distance of the sound source: the closer the sound sources are, the louder they become.
In addition, the loudness of the sound is also related to how much energy is lost in the propagation path.
Question 5: What objects in life can be beaten like the cry of a chicken? Thank you for the answer! Holding the balloon, pinch the area near the air port with the index finger and thumb of both hands, and pull back and forth to make a chirping sound.
You can buy the kind of inflatable toys that make sounds similar to animal sounds through the air currents when pinched, such as a duckling that a child plays with in the bath.
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Anonymous users2024-02-09The occurrence of all objects requires vibration and a medium of propagation, because air is a medium of propagation, so as long as a solid knife vibrates, there must be a sound.
Rubbing against air also produces sound.
If you don't understand, you can ask, thank you.
The button on the front dictation does not make a sound, so the key tone in the sound setting is turned off, so that this function can be achieved.
You have to be careful not to shout loudly when you speak. >>>More
It's inevitable to make a sound, just smack.
If there is such a sound in the mobile phone, I think it is very likely that your mobile phone is not particularly strong, because before my mobile phone was repaired, its mobile phone battery was originally sticky, so it was removed and disassembled, and now it is reinstalled, because the sticky is not good, and there is a collision, it can hear the sound of the mobile phone battery shaking when the mobile phone shakes.
The sound of the hard disk is mainly a gurgling sound, the hard disk with poor quality will be louder, and if the hard disk is too fragmented, it will also increase the workload of the hard disk and make the sound louder, and there is a situation where the hard disk has a bad sector, which will also lead to the sound of the hard disk, just scan it, and defragment it to do it, by the way, BT and other **tool** files will produce a large number of disk fragments, and the solution is to dump the movie that has been ** after it is completed, and save it to another partition. >>>More