constant maintenance

Notion of Constant Time Maintenance for Consistency of Databases

数据库相容性的恒定时间维护概念

We propose a notion of constant time maintenance, according to which the maintenance algorithm runs in time independent of the size of the database state.

我们称为维护问题，并提出恒定时问维护的概念，即维护问题算法的时间复杂性与数据库大小无关。

Stochastic inventory model about one sort of time-effective products in case of uncertain demand and constant supply The maintenance strategy; planned or reactive?

需求随机情形下时效性物品的随机存储策略保养维护的策略&预先计划或随机应变？

Electronic ignition system is characteristic of excellent performance and low fault rate, the constant maintenance is not needed.

汽车电子点火系统性能优良、故障率低，不需要经常维护保养。

The machinery requires constant maintenance.

这些机器需要经常保养维修.

Supposed a constant maintenance mechanism, the maintenance coefficients P/ O and the theoretical yield were estimated.

并根据一定维持机理求得了维持系数、P／O及理论得率等。

Constant maintenance, innovation has been the brand, right of self-publicity and promotion, through the public welfare activities such as multi-media public relations strategy to expand channels of social influence and reputation; 4. Diversified brand management, integrated channel added value.

不断维护、创新已有品牌，对之进行自我宣传和推广，通过公益活动等多媒体的公关策略，扩大频道的社会影响力和美誉度；4.频道经营多元化，整合品牌产业价值。

To minimize this problem constant maintenance of the signature database is required; a potentially costly exercise in dollars as well as the network administrator time.

为了减少这个问题的影响，就必须持续的维护特征数据库。这就要求昂贵潜在花费以及网络管理时间。

Turbines are designed so that they don't need constant maintenance, for the simple reason that there are a lot of them and they're a pain to climb.

风力发电机设计之初就是按照不需持续维护的标准来设计的，原因很简单：风力发电机数量太多，而且爬到顶上去维护很累人。

Their many vacuum tubes and mechanical parts required constant maintenance.

其中有很多电子管和机械零件，需要经常维修。

The lining support commonly used in practice is poorly water proof, short life and needs constant maintenance, so it seriously interferes with the production of underground mine.

常规的干砌料石支护，隔水性能差、寿命短、维修量大，严重地影响生产。