There was only a upper and lower bed which is small, old.

在那里只有一张又小又旧的上下铺床。

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In many cases of regional water resources issues, when numerical method is often adopted in groundwater flow modeling lower bed level value of aquifer on each node should be given.

对于许多区域水资源问题，用数值方法进行潜水水流模拟时，需要给出每个节点上含水层底板标高值。

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I approach the bed, lower myself beside her, and rest my head on the pillow next to hers.

于是，我挪到了她身边，把头枕到她的脸颊旁。

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For example, linear actuators help raise or lower a hospital bed or allow solar panels to track the path of the sun.

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And those with lower sleep efficiency, the amount of time they spent in bed asleep, were at higher risk too.

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