Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应.The purified rice amylose and amylopectins were obtained by n - butanol recrystallization meth...
Most have meekly accepted such advice.大多数人都已经顺从地接受了这样的建议。"Thank you, Peter", Amy said meekly.“谢谢你，彼得，”埃米温顺地说。He meekly accepted the rebuke.他顺从地接受了批评....
抗酸剂是碱性的，通过中和胃容物中的酸来减轻疼痛。Antacids are alkaline and they relieve pain by neutralizing acid in the contents of the stomach.这种水呈强碱性的.This water is strongly alkaline.不正碱性的纸张, 其本质是恒定的, 不常无法矫侧.Acid paper, its nature is constant...
The issue engendered controversy.这个问题引起了争论。...the Civil War and the strength of feeling it had engendered among the Spanish people...内战以及其在西班牙民众中所激发的强烈情感Its discovery engendered the'sudden freezing " approximation f...