Is this right, is it right, is it right, and is it right?

The cosine value of the angle formed by the surface is equal to the absolute value of the cosine value of the angle formed by its normal vector.

All correct. "Right" is a general statement, referring to the content of the statement and the thing itself, and "saying the right" means that what is said is correct, emphasizing the correctness of the content.

One, of. Pinyin: de, dí, dì, dī, radical: white, strokes: 8.

Interpretation: [ de ].

1.It is used after the definite sentence.

2. It is used to form the word structure of "of" without a central word.

3. This usage is limited to things from the past.

4. It is used at the end of a declarative sentence to indicate a positive tone.

5. It is used after two words or phrases of the same kind to mean "etc., etc., and so on".

6.Used in the middle of two quantifiers. Indicates multiplication. Indicates addition.

dí ]1, true; Really.

2. The character "of" is generally pronounced Yin Ping (dī) in colloquial language.

dì ] The center of the arrow target.

dī ] 外) is the provincial name for "taxi" (taxi).

Compounds: small, how, purpose, some, indeed, when, broken, taxi, medium, wu, hoof, target.

Second, detached. Pinyin: dé, de, děi, radical: 彳, strokes: 11.

Definition: [ dé ]

1. Get (as opposed to "lose").

2. The calculation produces the result.

3. Suitable. 4. Be proud.

5. Done. 6. When ending a conversation, it is used to express consent or prohibition.

7. When the situation is unsatisfactory, it means that there is nothing to be done.

8. Auxiliary verbs. It is used before other verbs to indicate permission (mostly seen in decrees and official documents).

9. Used before other verbs, it means that it may be like this (mostly used in the negative form).

de ] is used after a verb to indicate that the action has been completed (mostly seen in the early vernacular).

děi ]1, auxiliary verb. Need.

2. The negation of "getting" is "not necessary" or "not used", not saying "must not".

3. Auxiliary verbs. Indicates the inevitability of speculation.

4. Comfortable; Satisfied.

Compounds: experience, strength, gain, get, give, remember, feel, appear, obtain, worthy, understand, obtain.

Explanation of terms:one, 心得 [ xīn dé ] Interpretation: Knowledge, technology, ideological understanding, etc., that are experienced or comprehended in activities such as work and study.

二、得力 [ dé lì ].

Interpretation: 1. Benefit.

2. Be able to do things; Talented.

3. Be strong and powerful.

三. Income [ suǒ de ].

Definition: Refers to something obtained.

"You're right" is a general saying, and it is a dynamic structure. It's about what is being said and the thing itself.

And "you are right" is a subject-verb structure, which means that what you say is correct, emphasizing the correctness of the content.

We usually use the phrase "you're right".

You're right, the word "of" is a noun word structure, it stands for "thing or thing", and the thing or thing you state is correct in itself.

Xiangling (Zhen Yinglian) Zhen'er Xue Zhen - Xing Xiuyan Zhu'er.