Area velocity flow meter | Who knows the detailed content of GB/T 778

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Introduction and Translation of the Yellow River and Yangtze River in English

Yangtze RiverDuring the 40 million of years history of the life and 50,000 years of human civilization, Yangtze River, a mother of the Chinese people, bring up billions of Huaxia people.Different from the Missippi, the Niro and the Amason, Yangtze River is the largest river in China, rising from Qianghai Highland at the height over 3,000 meters, running through Mt.Wu covering with frog, absorbing thousands of rivers, traveling 6,400 km until it reach the Pacific. She passes by mountains, gorges, hills, plains, with changing scenes on different geographic shape. She lies on the mil-latitude area, the four seasons are distinctive here. The huge flow reaches 97, 935 billons cubic meter and ships can sail in the lower reaches all the year.The drainage area is over 1.8 million km, being 19% of the total cultivable land in the country. Here, the weather resource and the total productive value of the industry and the agriculture area 40% of the total respective in the country, bringing up about 400 millions persons, 1/3 of the population in China.It was 100,000 years ago that the human beings have lived in the Yangtze drainage area. Lantian man, Changyang man, Yunxian man are all the Chinese remote ancestors. And the ancient human remains and ruins of the Old and New stone Ages have been discovered everywhere along the river nowadays. 7000 years ago, our ancestors were fishing, cultivating, planting rice and bringing up descendants here. When it was in civilized society. Varies of distinctive national features were born here. Such as Jingchu Culture, Wu and Yue Culture, Bashu Cultures. The are all the priceless treasure in Chinese traditi

onal cultures.A place with mountains and rivers is always thought to be a precious land. Water is the reflection of the intelligence and the beauty. The living of the human being exist without water, the industry and the agriculture can’t leave water anyway also. Before trains, airplanes anf automobiles were invited, the waterway afforded the facilities on transport and the ship was the important traffic instrument. The water can bring people intelligence and enlighten people soul. Laozi and Zhuangchou got thoughts from mountains and rivers, who were both the citizens of the ancient Chu in South, developed Neo-confucianism and Taoism respectively. Many literary works, poem, dances, music, concerning to Yangtze Rive have been unique works of China and even on the world. For example, “Flowing down the high mountain” by Zhong Ziqi in the War Ages has become a world-famous classical melody today.In the ancient time, the people lived accommodating water source passively. As the saying, the water that bearing the boat is the same swallows it, Yangtze River benefits the human beings while brings flood. Most flood were took place in the Yangtze River area in the ancient time. On the other hand, the disasters have given Yangtze people a lot of experience fighting against the flood and a national characteristics showing a strong will of never giving up.After the human being entered into civilized society, wars, famines have taken palace here, aggressors’ tombs being remained for several thousands of years, the peaceful history with scenes of mature rice field extending thousands miles. As well as sad scene of desolation and being full of hungry people have shown up here. Today, along the Yangtze River from the birthplace Qiangha

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