Air-conditioning plus ammonia ; Air conditioning ammonia
双语例句
原声例句
1
针对氨纶工程工艺的特点 ,介绍该工程中空调通风系统的设计原则及系统配置情况。
On the basis of polyurethane fibre's characteristics and usages, the paper introduces the present market situation and prospects of the development of polyurethane fibre in China.