而这正是一些最富庶的发展中国家正在发生的事情：墨西哥城的空气污染水平随着科技发展和财富的积累正在下降。

That is happening already today in some of the richest developing countries: air-pollution levels in Mexico City have been dropping precisely because of better technology and more wealth.

随着科技发展和医疗需求的增加，医疗器械在社会生活中占据着非常重要的地位。同时，各种有关医疗器械的违法活动也在日益增多。

Medical apparatus and instruments take play more and more role as the development of technology and the requirement of medical apparatus.