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What is the equivalent of a ball with a diameter of one nanometer on table tennis?
A ball with a diameter of 1 nm is placed on a table tennis ball, which is equivalent to the moon being placed on the earth.

A ball with a diameter of 1 nm is placed on a table tennis ball, which is equivalent to the earth being placed on the sun.

Putting a ball with a diameter of 1 nm on a ping-pong ball is equivalent to putting bacteria on an apple.

Use the method of comparative explanation.

Contrast method often compares two things by narrative or explanation, identifies them in comparison, and shows the characteristics of the explained object; Metaphor, on the other hand, vividly shows the characteristics of the explained object through description, giving people an image feeling, so as to understand the characteristics of the explained object.

Extended data

Other description method features:

For example, 1:

Cite practical examples to explain things, make the things to be explained specific and make readers understand. This method of explanation is called example. To illustrate things or things through examples, we should pay attention to the representativeness and appropriateness of examples.

2. Reference:

In order to make the explanation more substantial and convincing, we can quote some documents, poems, proverbs and famous sayings. The range of quotations is very wide, which can be classic works, famous sayings, formula laws, allusions and proverbs.