目的探讨我国二甲基甲酰胺 ( DMF ) 的生物接触限值 ( BEI ).Objective To explore the biological exposure indices ( BEI ) of dimethylformamide ( DMF ) in China.研究表明,该反应器可有效降解苯甲酰胺.The results show that the new type reactor could degrade benzamid...
Daydreams may seem to be rehearsals for real-life situations.白日梦可能像是真实情景的预演。He daydreams of being a famous journalist.他幻想着自己成为著名记者。He escaped into daydreams of beautiful women.他躲进白日梦中幻想美女。...