alder

alder的英语例句

1. Modification for synthetic purposes on the Diels - Alder adducts 56 and 62 has only rarely been considered.

   为了达到合成的目的,对Diels-Alder加 成物(56)和(62)加以改造的问题很少有人考虑.

2. The meanders of a prattling brook, were shaded with straggling willows and alder trees.

   一条小河蜿蜒掩映在稀疏的柳树和桤树的树荫间,淙淙作响.

3. Its name is Ben Alder , it is a wild , desert mountain full of hills and hollows.

   它的名字是本·亚尔德, 是一座尽是些山岗和鸡谷的漠无人烟的荒山.