There are two calligraphers whose styles of practicing calligraphy are quite different.A person imitated the ancients very seriously, and insisted tha...
A rich man is always rich, so he spoils on this precious son. And this young master was also very naughty.One day, the young master climbed up to the ...
October brings hope, pleasure in the golden autumn, and the good results! According to the news on October 8, Kaifeng DEAR air separation (hereinafte...
The Golden Wind brings cool, the osmanthus fragrance; and the Mid-Autumn Festival, the moon is two round. On September 21, DEAR kongfen provided Mid-A...
The main components in the air are nitrogen and oxygen. By selecting the adsorbents with different adsorption selectivity for nitrogen and oxygen, the...
It was reported on July 20 that DEAR air separation successfully signed a contract with Henan Fengbao Special Steel Co., Ltd. (hereinafter referred to...
There is a grove in the desert, in which dozens of birds are struggling to live. One of the birds saw their habitat getting smaller and smaller, and t...
An adventurer was going to drive a small sailing boat across the Atlantic Ocean. In a storm, the sails were torn to pieces, and the sailing boat had n...
On May 3, it was reported that DEAR air separation (hereinafter referred to as DEAR) and Guangxi Guifeng Metal Products Co., Ltd. (hereinafter referre...
Oxygen is widely used in industrial production and daily life. The air contains 21% (volume concentration) of oxygen, which is the cheapest raw materi...
The sea lack drop of waterForest lack a treeUnit lack a personBut your familyLack of a person who is proudLack of a person who can lead a good life fo...
