給排水專業(yè)外文翻譯-給排水(已改無(wú)錯(cuò)字)
2023-03-03 02:58:57 本頁(yè)面
【正文】 erns continued to be the principal water supply of Venice until about the sixteenth century. Many experiments were conducted in the eighteenth and nieenth centuries in England,France Germany,and Darcy patented filters in france and England in 1865 and anticipated all aspects of the American rapid sand filter except appears to be the first to apply the law of hydraulics to filter design. The first filter to supply water to a whole town was pleted at Paisley,Scotland,in 1804,but this water was carted to consumers. In Glasgow, Scotland,in 1807 filtered water was piped to consumers. In the United States little attention was given to water treatment until after the Civil War. Turbidity was not as urgent a problem as in Europe. The first filters were of the slow sand type,similar to British design. About 1890 rapid sand filters were developed in the United States and coagulants were introduced to increase their efficency. These filters soon evolved to our present rapid sand filters with slight modification. 歷史上的水供應(yīng) 人類對(duì)純凈水的搜尋開始于史前時(shí)代。 大多數(shù)他們的行動(dòng)都是推測(cè)。 一些人可能會(huì)導(dǎo)致水在他們希望通過(guò)在地上挖戰(zhàn)壕，一個(gè)中空的木頭或許是作為第一個(gè)水管道。數(shù)千年前，必須通過(guò)我們最近的祖先學(xué)會(huì)建造城市，享有便利的水管道和渠道輸水廢物的家。我們最早的考古記錄中的供水和廢水處理日期后約 5000 年，在尼普爾的蘇美爾。在尼普爾遺址有弧形的流失與寶石設(shè)置充分的 “楔 ”的位置，每個(gè)石是一個(gè)楔形向下逐漸變細(xì)到地方。水是從威爾斯和蓄水池。廣泛的
醫(yī)療健康相關(guān)推薦
鄂ICP備17016276號(hào)-1