煤炭的未來取決于經(jīng)濟(jì)增長(zhǎng)與環(huán)境保護(hù)之間的平衡。
Fear can hold you prisoner,hope can set you free.A strong man can save himself,a great man can save others.
The only limit to our realization of tomorrow is our doubts of today.
The best technology is invisible. It works so well that you don't even notice it.