英语语法分析

Rice husk with ash contents above 20% is difficult to gasify.

水稻20%以上灰分含量的壳很难气化。

Mr Buzek pins his hopes on techniques to liquefy or gasify coal, but they are not yet developed.

Buzek先生既希望于煤炭的液化和气化技术，但至今尚未突破。

But there had been little incentive for the global chemical industry to gasify coal until prices began soaring for natural gas and oil.

但是直到天然气和石油的价格大幅上涨之后，全球化学工业才有了开展煤炭气化业务的动力。