The jackrabbit-spi component defines an architectural layer below the JCR API.

jackrabbit - spi组件在JCR API之下定义了一个架构层。

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However, the condition often does not allow Wells to pump fluid into the layer below the place, then consider the use of downhole gas separator.

但井的条件常不容许将泵置于流体进入层下方，则考虑用井下气分离器。

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Part of the limestone rock layer is permeated by water from below.

下面的水渗入了部分石灰岩岩层。

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Two teams of engineers, one funded by the state of Louisiana and one based at the University of California, Berkley, have previously put the blame on the Army Corps of Engineers and on a weak layer of ground below the canal walls.

NPR: Panel's Report Assigns No Blame in Levee Failures

The result is that any coating, such as an antibacterial layer, would be "self-repairing" after small amounts of damage, as the molecular chains just below the damaged layer re-cover the surface.

BBC: Coating heals itself after damage

The eerie light probably came not from the substance itself, but from the boundary between it and the glass layer below.

ECONOMIST: Combinatorial chemistry