Maintenance for a given body design of an organism is relatively constant.

对一个有机体特定主体设计的维持是相对恒定的。

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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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The combination of old body style and new platform necessitated compromises, such as an unusual driving position and poor access to maintenance items.

这种旧瓶装新酒的做法必然意味着在某些方面要做出一些妥协，比如驾驶位置与众不同，以及保养零件稀少等。

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One of the main things that we use cell culture or maintenance of cells outside the body for is to make more copies of cells.

我们培养细胞,或者体外维持细胞的重要步骤,就是复制更多的细胞

耶鲁公开课 - 生物医学工程探索课程节选

The Department of Transport said a sale will only be made to "a public body" able to take on the maintenance of the mile-long tunnel.

BBC: Harecastle tunnel offered for sale by the government

The reason reversing such gains is hard is that servicing this extra flesh means a person's maintenance diet (the food required to keep his body ticking over) creeps up with his weight and so does his appetite.

ECONOMIST: The difficulty of losing weight is captured in a new model

The bond quota issued by the National Development and Reform Commission, China's top economic-planning body, will be used to help the ministry finance the maintenance and construction of a rapidly expanding railway network.

WSJ: China's Railway Ministry Gets Approval for Bonds