As the bat flies, it emits a sound called ultrasound from its mouth

After repeated research, scientists have finally uncovered the secret of bats being able to fly at night. As it flies, it makes a sound from its mouth.

This sound is called ultrasound, and it is inaudible to the human ear, but it can be heard by the ears of bats. When the ultrasonic wave propagates forward, it is reflected back when it encounters an obstacle and reaches the bat's ear, which immediately changes the direction of flight.

Scientists imitated the bat's pathfinding method and equipped the plane with radar. The radar emits radio waves through the antenna, and when the radio waves encounter obstacles, they are reflected back, received by the radar, and displayed on the phosphor screen. From the fluorescent screen of the radar, the pilot can clearly see whether there are any obstacles ahead, so the aircraft is safer to fly.

The bat is very much like a kite, from the forelimbs, hind limbs, all the way to the tail, covered with a thin layer of strong skin, like the paste paper on the wooden frame of the kite. These fruit-eating bats are like hanging fruit trees upside down when they rest.

The abbreviation of this sentence can be said that bats make sounds. This should be abbreviated at its simplest.

It should be a data problem caused by the sound of ultrasound.

Generally, handing over a kind of supermarket class data from the water is actually such a meaning.

Hello, if a bat flies and emits a sound called ultrasound from its mouth, it is a bat that makes a sound.

The bat flies over and over again, and while emitting a sound called ultrasound from its mouth, the abbreviation is that the bat makes a sound, and the sentence is the action of the bat, and the position of the sound and the name of the sound are all shrunk.

Abbreviated sentences generally leave the main stem of the sentence, and the adjectives and superfluous action words are deleted, leaving only the part that can express the meaning of the sentence.

The abbreviated sentence is to shorten the long sentence of "thick branches and leaves" to a short sentence that only leaves the "trunk", and cannot change the main meaning of the original sentence, that is, to remove the branches and reduce the leaves. Abbreviation can be understood as the meaning of summarizing the meaning of a sentence.

No matter how complex a single sentence is, as long as it is compressed layer by layer, it will become simpler and simpler, and what remains in the end is the "trunk" of the sentence, which is the subject-predicate-object. In other words, the "trunk" is the remaining part after all the adjectives, adverbials, and complements have been compressed.

Bats make sounds.

The above is the answer to the abbreviated sentence "The bat flies and makes an ultrasound-like sound from its mouth".

To put it simply, it relies on ultrasound, the bat's eyes are not good, and when it flies, it emits a kind of ultrasonic wave (which is inaudible to humans), and the ultrasonic wave is reflected back when it encounters an object, and the bat receives the reflected ultrasound wave to judge the obstacle or prey in front of it

Definition. There are still Shenma who want to ask about drops?

:@味汁 Then please ask the PE teacher tomorrow what is going on, thank you.

Abbreviated sentence: Scientists have uncovered the secret.

Explanation and analysis: The principle of the abbreviated sentence is to shorten the long sentence of "thick branches and leaves" into a short sentence that only leaves the "trunk", and cannot change the main meaning of the original sentence, that is, to remove the branches and reduce the leaves, and the abbreviated sentence can be understood as the meaning of summarizing the meaning of the sentence.

Take the title as an example, "After repeated research, scientists have finally uncovered the secret of bats being able to fly at night." "Scientist, secret" is the backbone, the rest are modifiers, quantifiers and adjectives, remove other superfluous and unnecessary modifiers, and the answer is: scientists have uncovered secrets.

Abbreviated sentence: Scientists have uncovered the secret.

Note] "After repeated study" and "finally" are used as adverbial sentences and deleted; "Bat" and "able to fly at night" are deleted as a final sentence.

May it help you!