例句與造句

1. With appropriately fine silica gel, the bulb may be squeezed for microscale flash column chromatography.
2. The particle size of the stationary phase is generally finer in flash column chromatography than in gravity column chromatography.
3. Still and coworkers also developed the purification technique known as flash column chromatography which is widely used for the purification of organic compounds.
4. It's difficult to find flash column chromatography in a sentence. 用flash column chromatography造句挺難的