用胺作为质子吸收体代替吡啶还是得到同样的结果.Amines other than pyridines have been successfully employed as a proton sponge.适当地利用吸收体,可以使前两种相应特性得到改善.The first two of these characteristics can be improved by the judicious use of absorbers.所以良吸收...
The Philippines has just 6,000 square kilometres of forest left.菲律宾只剩下6,000平方公里的森林了。We weighed anchor in the afternoon and started for the Philippines.我们在下午启航,前往菲律宾.Wild tribes still inhabit part of the Philippines.菲律宾部分...
The value of this work experience should not be underestimated.这种工作经验的重要性不应该被低估。The country'sleadership had underestimated the depth of the crisis.该国领导人低估了这场危机的严重性。They underestimated his abilities.他们过低估计了他的才能....
Malnourished children are more likely to succumb to infections.营养不良的儿童更有可能死于感染.About thirty percent of the country's children were malnourished.这个国家约有30%的儿童营养不良。The factory workers were found to be abused and malnou...