Exercise is one of the few factors with a positive role in long-term maintenance of body weight.

锻炼是对长期保持体重有积极作用的少数因素之一。

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Although some systems administrators still use the term "maintenance level" when discussing their AIX version, the term is now reserved for legacy AIX systems.

尽管有些系统管理员在谈论他们的AIX版本时仍然使用“维护级别”这一术语，实际上这个词现在只针对遗留aix系统。

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What is meant by the term software maintenance?

软件维护是什么意思？

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Biodiversity, which includes species, ecosystems, and ecological processes, is essential for the long-term maintenance of ecosystem services like photosynthesis, nutrient recycling, soil fertility, provision of fresh water, disaster prevention, and many others.

FORBES: Conservation International: Stemming the Tide of Environmental Crises, Part Five

Responding to Monday's debate, defence procurement minister Peter Luff said no decisions had been made on long-term maintenance contracts but the "main investment decision for support arrangements" would be taken "before the middle of this decade".

BBC: Gordon Brown urges aircraft carrier work at Rosyth

Not only does it mean that the two sides do not work naturally together on day-to-day matters of maintenance, or on longer-term issues of investment.

ECONOMIST: A better way to run a railway