constant maintenance

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。

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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。

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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。

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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。

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Notion of Constant Time Maintenance for Consistency of Databases

数据库相容性的恒定时间维护概念

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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。

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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。

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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。

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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。

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The machinery requires constant maintenance.

这些机器需要经常保养维修.

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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？

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