As we all know, titanium is a highly chemically active metal, it is easy to be oxidized in the air to produce titanium oxide, and the melting point of titanium is quite high, 1860 ° C, which makes the smelting process of titanium very difficult.How to ensure the high purity of titanium, you have to
The weather pole is the key equipment in the field of meteorological observation. The weather pole is usually installed at a standard height of 10 meters. The altitude is set to meet the requirements of measuring wind speed and direction to ensure the accuracy and reliability of data.We often
In the golden autumn season, the mountains and rivers of China are beautiful.My motherland celebrates its 75th anniversary.May my motherland always be young and strong.金秋时节,华夏大地山川秀美。我的祖国迎来75周年华诞。愿:我的祖国永远年轻、永远强大。