But the optimists think it is possible to avoid losing altitude by building a bridge between where they are and where they would like to be.

但是乐观派认为可以架一座桥连接目前在的地方和想要去的地方，来避免高度降低。

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Japan has invested a huge sum on building up a simulated altitude test facility.

日本斥巨资建立发动机模拟高空试验台。

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The four permanent benchmarks are built as the altitude control network in the place because of the requirement for the CSPC Nanhai petrochemical project's building.

中海壳牌南海石化项目因工程建设的需要，在厂区范围内建立了四个永久性水准点作为场地高程控制网。

youdao

But the optimists think it is possible to avoid losing altitude by building a bridge between where they are and where they would like to be.

ECONOMIST: Economics focus

That wind was traveling at 120 miles an hour, so we ended up with Felix in the capsule under this 30-million-cubic-foot balloon flying at 125 miles an hour to the east, which is amazing to think about, because at that altitude, it's the equivalent of about a 50-story building.

ENGADGET: Art Thompson, Red Bull Stratos' technical project director, talks circuit breakers, wind shear and biomedical data