可以把你的信息或标志印在信纸上。Stationery can be imprinted with your message or logo.信纸和信封writing paper and envelopes他会提笔给家人写信，却常常懊恼沮丧地又把信纸揉成一团。He would start writing to his family and would screw the letter up in frustration....
肉桂醛的广泛应用决定其具有十分广阔的发展前景.The expansive development prospect of cinnamaldehyde were viewed based on its wide application.用 4- 氨基安替比林与 3- 甲酰基色酮 、 肉桂醛、茴香醛反应分别合成了3种新的席夫碱化合物.Three novel Schiff bases were synthesized using the r...