你要用到:of.虽然中国人可以看得懂,但是一般外国人是看不懂的:
Manufacturing and selling the intelligent control system of building
Combustible Gas alarm which are suitable for industry or families
The Automatic Meter Reading System such as for gas,water,or electricity.
应该这样就好了
英语,看有没错误.BUSINESSManufacturing and selling building intellig