steaming graded thin-layer chromatography

例句：

1. 1.The steaming coffee is ready to serve.
   热腾腾的咖啡准备就绪。
2. 2.The river is so turbulent that it's hard to cross.
   这条河湍急得难以通过。
3. 3. The boiling water will soon turn into steam.
   热水很快就会变成蒸汽。