The production of cold involves the production of liquefied gases.冷量生产涉及到液化气的生产.It is best fit for pouring liquefied gas bottle, inversing bottle and adding gas for motorcar.该泵最适合于液化气瓶的罐装、倒罐及汽车燃料加气.Oxygen obtained from l...
Oxygen obtained from liquefied air is usually about 99.5 % pure.由液化空气所取得的氧其纯度通常约为99.5%.The production of cold involves the production of liquefied gases.冷量生产涉及到液化气的生产.Chlorine is usually liquefied before use or storage.氯...