名词 ester:

1. formed by reaction between an acid and an alcohol with elimination of water

estern.酯esterquat酯基阳离子Esterlinen.埃斯特莱恩ester oil酯油Estermann埃斯特曼ester gum酯树胶,酯屎,甘油松香酯Esterowitz埃斯特罗维茨esterquart酯基季铵盐Esterwegenn.埃斯特韦根(在德国；东经 7º35' 北纬 53º00')ester acid酸式酯esterase D脂酶D

1. The main constituents were alkanes and esters.
   小叶三点金全草主要含有烷烃和酯类化合物。
2. Only a very limited amount of data is available on thiol esters.
   有关硫醇酯类的数据非常有限。