The construction of this ball bearing is similar to mounting two single row angular ball bearings back to back(DB).

这个球轴承结构越来越相似 ， 两个单列角球轴承背对背（DB）的。

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Well, this allows us to try to go back and explain some phenomena that over the years, mounting evidence was building that couldn't be explained.

好了，这个可以使得我们,返回去然后去解释一些，以前逐年积累的未能解释的现象,我们下节课将讨论。

麻省理工公开课 - 化学原理课程节选

Video pictures relayed live back to the research ship mounting the operation show spindly chimneys up to 10m high.

BBC: Deepest undersea vents discovered by UK team

If Japan has to pull back on its buying of Treasurys to focus on its own mounting debt, that would put some pressure on interest rates.

FORBES: Fed Faces New Questions With Japan Crisis

Alice, still standing between them, was looking back and forth, catching glimpses of their majesty as their mounting anger caused them to let it slip, and getting drunker on them.

NEWYORKER: A Tiny Feast