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What are natural gas and liquefied gas

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Liquefied petroleum gas (LPG) is a kind of colorless volatile liquid obtained from natural gas or petroleum through pressurization and cooling liquefaction in the refinery. Extremely easy to self ignite. When its content in the air reaches a certain concentration range, it will explode in case of open fire. The liquefied petroleum gas obtained from the refinery is mainly composed of one or two of propane, propylene, butane and butene, and it is also mixed with a small amount of pentane, pentene and trace sulfide impurities. If further purification of liquefied petroleum gas is required, ethanolamine absorption tower can be used to absorb and remove the oxygen sulfide carbon, and then the excess sulfide can be washed off with alkali.

Natural gas is a kind of gaseous fossil fuel mainly composed of methane. It mainly exists in oil fields and natural gas fields, with a small amount coming from coal seams. Like crude oil, natural gas is also buried in underground closed geological structures, some of which are stored in the same layer as crude oil, and some exist alone. Natural gas stored in the same layer with crude oil will be extracted together with crude oil. Natural gas is mainly used as fuel to produce carbon black, chemicals and liquefied petroleum gas. Propane and butane produced from natural gas are important raw materials for modern industry. Natural gas is mainly composed of gaseous low molecular hydrocarbon and non hydrocarbon gas. With the accelerated implementation of natural gas price reform, the 13th Five Year Plan to vigorously promote the development of natural gas is approaching, and the use of natural gas has increased significantly in the recent cold weather, the development of natural gas will usher in a historic opportunity.

Just let it go 2023-11-12 11:28:17

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Think like a spring or think like a spring

Think like a spring.
Think like a spring, a Chinese idiom, whose pinyin is s ī r ú qu á n y ǒǒ ng, meaning that talent is like a gushing spring, which describes talent and quick thinking.
Source: The Old Book of the Tang Dynasty, Biography of Su Ting: "The thoughts of those who have given up their lives are like springs of water, which is beyond the reach of Jiao."
Sentence making:
1. The pride of an article must be that it is written from time to time, but no good article can be written after searching.
2. Editing an article can be done at the end. The most important thing is to let you think like a spring of water and create the best work.
Synonyms: cai si quan yong, wen si ru quan.

Is the garment a single character structure

"Yi" is a single character structure, pronounced y ī, y ì, and is a common standard first level character (commonly used) in Chinese. The initial text of this word can be seen in the oracle bone inscriptions of the Shang Dynasty. The ancient character looks like a coat, which originally means a coat, and the ancient lower garment is called a coat. The following is the general name of clothes. It is also extended to something covered or wrapped on the surface of an object. Read y ī above. The meaning of wrapping and covering is extended from the function of clothes. "Yi" also means to wear clothes. It is used as a verb.
Origin of "clothes":
1. The Book of Songs · Wind · Green Clothes: "Green clothes and yellow clothes."
2. The Book of Songs · Qi Feng · The East is Unclear: "The East is Unclear, and clothes are turned upside down."
3. Independence in a Small Garden: "New mud adds Yan households, and drizzle wets Yingyi clothes".
"Clothes":
1. He is bold and careful, and does everything perfectly.
2. This is a perfect plan!
3. The products my father sells are perfect.
4. The painting was damaged, but after being repaired by Master Zheng, it was almost flawless, and no trace could be seen.
5. The tacit understanding of their performance can be said to be perfect.

How to Write Poetry Rhythm

Rhythm writing method:
1、 It should be clear that the quatrains of ancient poetry are different from regular poetry.
For quatrains: five character quatrains are called five character quatrains; Seven words in one sentence is called seven character ancient poetry. It is generally composed of four sentences, which can be divided into Lvjue and Gujue.
For metrical poetry: the metrical poetry with five words and one sentence is called five character metrical poetry, which is called five metrical poetry for short; The seven character verse is called seven character verse, which is called seven verse for short.
2、 Rhyming difference:
In terms of rhyme, quatrains have different requirements according to different forms. The law is the most strict. Like metrical poems, they should pay attention to the balance of tone and level, and rhyme strictly. But the quatrains like "Gujue" are not so strict.
Rhythm: There are strict regulations on words, rhyme, tone and tone, and antithesis. There is also an alternative rule for the allocation of tone and tone, which is a common formula: "One, three, five, no matter, two, four, six clearly". It means that one to three or five characters are no more restricted to the contrast between level and oblique, but two to six characters must be "flat" versus "oblique" or "oblique" versus "flat".
3、 To write rhyming well, we should pay attention to the use of pairs in the upper and lower sentences of poetry.
The antithetical song is also a ballad composed of antithetical couplets summarized by people. It is a kind of antithetical sentence. It is a unique art form of the Chinese language, with simple words and deep meanings, words matching and tone harmony.
For example: day to earth, rain to wind. The mainland faces the sky. The mountain flowers are opposite the sea trees, and the red sun is opposite the sky. The thunder is dim and the fog is dim. The sun sets against the sky. The wind is high, the moon is white, and the rain is red after sunset. Niu Nv is about the two star river, and businessmen are competing with each other in the west and east. In October, the frontier was filled with cold frost, which frightened the garrison brigade; Three winters on the river, the long snow cold fish Weng.
4、 By paying attention to the "flat" and "oblique" in poetry, and combining with the matching songs, the words in poetry can be matched, and the rhyming poetry can be written with frequent practice.

Poems describing the cool and alienated temperament

The poems describing the cool and alienated temperament include:
1. The people beside the loessial floor are like the moon, and the white wrists coagulate frost and snow—— Wei Zhuang's Bodhisattva
2. The crimson gauze has thin ice texture, and is greasy and crisp—— The Ugly Slave by Li Qingzhao
3. The witch's face is like flowers with dew, and the jade tree shines in the backyard—— Chen Shubao's "Yushu backyard flowers"
4. There are beautiful women in the north, unique and independent. One glance at the city, then the country—— Li Yannian's Song
5. The beauty covers the present and the past, and the lotus blushes. Washing gauze with clear water makes you feel free. It's hard to open the letter with white teeth. It's among the blue clouds—— Li Bai's Xi Shi
6. More than 13 years ago, cardamom shoots in early February. Spring breeze ten li Yangzhou road, roll up bead curtain is always inferior—— Du Mu's Farewell
7. The lotus leaf skirt is cut in one color, and hibiscus opens to both sides of the face. You can't see when you enter the pool. When you hear the song, you feel someone is coming—— Wang Changling's Lotus Picking Song
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Poems describing the charm of cheongsam What does it mean to bother Translated with the eldest son Beautiful poem describing cloud What vowel is aieiui What's the meaning of "what can you do with your feelings?" Which myth is the god of candles and dragons from Overlapping radical What are the two specifications of red scarf What is the meaning of the great loss of morale What does subtropical mean What are the words beside the wooden characters related to grade one The moon track expresses the author's thoughts and feelings Explanation of Xueheng School How to understand learning without thinking is useless What is the meaning of the summer quatrain What does a wise man mean What parts does the text include What does it mean to move right Is ri flat or raised?
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