Archaean cell walls lack murein, and their lipids have ether links rather than ester links.
古细菌的细胞壁缺乏胞壁质，其连接是醚连接而不是酯连接。
2
Based on the principle of ester hydrolyzation to ether in alkali condition, the process for preparation of dimethyl sulfide from sodium methyl sulfate residue was investigated.
根据酯在碱性条件下水解反应生成醚的原理，研究了以甲基硫酸钠废渣为原料制备二甲基硫醚的方法。
3
The mechanism involves a combination of hydrolysis of the ester linkages and enzymatic attack on ether and amide bonds.