养护

Specialised in web development, design and maintanence. 精通网页开发，设计，维护。

It adopts mechanical seal as standard equipment, which excludes leakage and brings easy maintanence. 采用机械密封作为标准配置,消除了泄露,维护简便。

In the under-developed contury,the price maintan steady for serval consecutive years. 在不发达国家，物价会连续几年保持不变.

I believe the price is about US$ 20,000 per seat for PDMS plus yearly maintanence which is not outlandishly expensive for software of that caliber. 我想PDMS价格在每个席位2万美元左右，附加年维护费对于那样水平的软件不是出奇的昂贵。

Enterprise information service market's deploitation and efficiency maintanence is a common strategy choice for both enterprise and mordern information service industry. 企业与信息服务业有其合作市场,企业信息服务市场的开拓与有效维护可成为企业与现代信息服务业发展的一个共同的有益战略选择。