FTIR光谱表征了ZJ煤去灰前后和溶胀处理效果的结构变化；
The FTIR spectrum shows the ZJ coal's structure changes before and after deashing and swelling;
她掸去袖子上的灰末。
可是时机不等人，他早晨去时，灰雁已经飞走了。
But time and tide wait for no man and when he went back in the morning the greylad geese had gone.
可是时机不等人，他早晨去时，灰雁已经飞走了。
But time and tide wait for no man and when he went back in the morning the greylad geese had gone.
应用推荐