Choosing a previously owned espresso machine saves 90% of the CO2 needed to produce a new one.
选择一个以前有的煮咖啡机将才省90%的二氧化碳(如果制造一个新的话)。
2
The important specialties of CO2 welding machine and its study evolution are follow set forth.
接着阐述了CO_2焊接的特点、目前国内外的研究现状。
3
CO2 laser marking machine is the flight line people liters laser developed specifically for the automation industry, a device used in the production line to better flight marking.