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[Clear]

Basic information

Synonyms are clean, clear, clear, clear, clear and fresh.

The antonym is turbid, turbid and dirty.

Make the basic explanation (knowledge, questions, etc.) clear. )

detailed description

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Clear: The lake is green, clear and bright.

Look, look up slowly from the clear river ... (Lao She: winter in Jinan)

(2) Turning turbidity into clarity is a metaphor for eliminating chaos: ~ the world.

Find out (knowledge, problems, etc.). ): ~ facts

Because he thought he was innocent, he tried to clarify himself in court.

[dèng qèng]

Basic information

Explain that impurities are precipitated and the liquid is clarified [1]

The water is too turbid to be used until it is clarified.

(1) Zhou Libo's "Tung Flowers Not Blooming" VI: "Wait until the mud in the paddy field is clarified." Xu Huaizhong's "Anecdotes on the Western Front" VIII: "I found a stagnant water full of flying insects. Put a few pieces of water purifying agent to clarify. That strange smell makes people tremble, and I can't drink it. "

(2) There is too much sand and gravel in this river, which can only be used to irrigate seedlings after clarification-Winter in Jinan by Lao She.

detailed description

1. [Clear] Clear; clear

The water in the pond is green and clear.

There is too much sand and stone in this river, which must be clarified before it can be used to water the seedlings —— Lao She's Winter in Jinan

2. Show the truth; Eliminate confusion or ambiguity

The golden monkey made a thousand moves, and Yuyu clarified Wan Li. -Mao Zedong's Seven Laws and Comrade Guo Moruo

3. Make it clear. Yuping rules the world.

"Northern History, Scholars and Zhang Tiaowu": "The emperor also deeply relied on it and entrusted him with the post of governing the country. Carving martial arts takes clarity as its own responsibility and its spirit is high. "

4. Wei destroyed the chaos.

"The History of the Later Han Dynasty, Party Obsession and Fan Pang Biography": "I boarded the bus to collect money, and I have the ambition to clarify the world." Weng's "Hexinlang West Lake" says: "For the rest of my life, I will be self-sufficient, and whoever has not met the stream has not got up." Comrade Zhu De and Guo Moruo's "People in Taihuai, Deng Erya": "On the day when domestic troubles and foreign invasion are clarified, I will drink Huanglong and meet you. "

5. Extended to stability.

Song Sima Guang's poem "Xizhai" reads: "I am still entertaining myself with books when the four borders are clear."

6. clear; Sister Ming.

Lu Yun in the Jin Dynasty's Fu Nan Zheng: "The idle nights are cold and bright, and the Central Plains is vast." Song Sushi's poem "Crossing the Sea on the Night of June 20": "Who embellishes the clouds and the moon, the sky and the sea are clear." The third part of Shangrao concentration camp in Feng Xuefeng: "Shi Zhen's face is smiling, especially beautiful, resolute and pure, and her eyes are calm and clear."

7. get to know it; Find out the answer.

Jin Justin's Book of the Later Han Dynasty Huan Ji: "Your Majesty no longer distinguishes between good and evil, and all of them are named as loyal minister Yin Xun, which makes Zhu Zi different and mixed." Ba Jin (China): "Even if you are in contact with people with different ideas, you can always sort out some problems through an open-minded debate."

2 technical terms

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concept

English clarification

A sewage treatment method using contact coagulation sedimentation to realize mud-water separation is defined. [2]

remove doubts and misgivings

Is the pronunciation of the word "Cheng" in "Clear Lime Water" common in middle school chemistry (dèng) or (chéng)? Yesterday, some netizens took a screenshot of the pronunciation of common words in modern Chinese in a teaching aid book. In the picture, the word "Cheng" in "Clear Lime Water" is pronounced by a red circle, causing a heated discussion in Weibo.

Say: clear limewater. According to Modern Chinese Dictionary, "dèng" is a verb, meaning "precipitate impurities to make the liquid clear". For example, this kind of water is too turbid to be used until it is clarified. In this way, "clarifying limewater" is a verb-object structure phrase, which means an operation of "clarifying limewater". Of course, verb-object phrases can also be used as noun phrases, such as "printed copy" and "cloned sheep", so "clarified limewater" can also indicate the state after the action is completed, that is, the limewater after "clearing". But these two meanings are exactly the same in pronunciation and words, which will inevitably lead to confusion.

Second: chéng clear limewater is also pronounced in many teachers and teaching AIDS. At this time, chéng, as an adjective, is clear, which means that the whole phrase is in a positive structure, that is, clear limewater, which is used to distinguish it from more common limewater in real life (that is, turbid limewater). For example, we will use "pure water" to represent the common water (tap water) in life. As a phrase with partial structure, "chéng clear limewater" does not cause ambiguity, describes the state of the reference object well, and is suitable for the clarified limewater obtained by any preparation method without contradiction, so the naming is simpler and more accurate.

1. According to the definition of this entry (the first sentence of the entry's business card), it can be known that the clarified limewater is a clarified solution of Ca(OH)2 (that is, the solution is required to be clarified, because the "clarification" here corresponds to the "turbidity" of the clarified limewater, see the "Use" section below the entry, so the "clarification" required here can only be

2. Chemically, it is strictly required to add excessive solute only when preparing saturated solution until it can no longer be dissolved (see saturated solution). At this time (before filtration), the whole solution is turbid with insoluble matter (excessive solute). At this time, the process of "clearing (precipitating impurities and clearing liquid)" is carried out.

3. Clarification refers to the precipitation of impurities to clarify the liquid. If there is no insoluble matter (clarity) after the prepared solution is completely dissolved, the process is not clear.

4. The solubility of calcium hydroxide is 0. 185g/ 100ml (calculated by calcium hydroxide), which is not so-called "minimal" (even in middle schools). If 100mL saturated limewater is prepared, the saturated solution only needs 0. 185g calcium hydroxide, that is, between 0.65438+. The minimum scale of pallet balance used in middle schools is 0.1g. It can be known that if only 0. 1g calcium hydroxide is weighed and made into 100mL unsaturated solution (but the solution is clear and conforms to the definition), the weighing operation can be carried out.

5. If a pallet balance with a minimum scale value of 0. 1g is used in middle schools, it is called 0. 1g calcium hydroxide (assuming that the pallet balance has a large error, even if the weighing time exceeds the standard by 50%, it is at most 0. 15g, less than 0. 185g,/. Soluble in 100mL distilled water (this amount is not too large and can be operated). After dissolution and balance, clear limewater can be obtained directly, and the process of "cleaning" is completely unnecessary! That is to say, under the condition of middle school, clear limewater can be prepared directly without the process of "clarification", which also conforms to the definition of clear limewater, that is, the solution is clear (not saturated).

6. To sum up, it can be seen that it is completely absurd for some "experts" to interpret "verb-object structure phrase" as "clear"-because as long as you weigh 0. 1g pure calcium hydroxide with a tray balance (this behavior is completely possible) and dissolve it in 100mL water, you can directly get clear (clear). There is no need for "clearing" operation. Since the action of "clearing" is unnecessary, the so-called "expressing the state after the action is completed" or using this unnecessary action to define or name it is naturally self-defeating, because the process of "clearing" is not necessary in definition or in actual operation, but only necessary. In addition, clarification itself can be used as adjectives, and it is logical to modify nouns with adjectives.

So, clarify limewater and read chéng qng Shi Hu Shuǐ.

This is the explanation of Baidu Encyclopedia. In most cases, it is a reading process.