2. Of course. And improved coal gasification process could also be used to improve biofuel processing technologies. 当然。而且提高煤气化过程可能也会有利于提高生物燃料加工技术。
3. As no breakthrough has been made in coal gasification, the problem of air pollution and acid rain is likely to worsen. 由于人们在煤的气化作用方面没有取得突破,空气污染以及酸雨问题有可能恶化。