... lower atmosphere 低层大气 lower bed 低河床 lower course 下游 ...
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lower bed level estimation 底板标高估值
lower confining bed 隔水底板
lower dental bed 下牙床
lower pebble bed 下层卵石床
lower material bed 低料层
·2,447,543篇论文数据，部分数据来源于NoteExpress
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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For example, linear actuators help raise or lower a hospital bed or allow solar panels to track the path of the sun.
FORBES: Danish Inventor, Manufacturer Bent Jensen Now Among World's Billionaires
And those with lower sleep efficiency, the amount of time they spent in bed asleep, were at higher risk too.
CNN: Study: Can more sleep help fight off colds?
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