It took a great deal of structural analysis work on our part so that we would be able to tell the contractor to build the right cambers so they would all go to the zero baseline elevation.

在我们做大量的结构分析工作之后我们才能让承包商去建造正确的拱。这样他们全都会去做零高程基准工作了。

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Sherpas carried the group's backpacks and tools, but Cheung and her group hiked for four days to an elevation of 10, 000 feet and camped both in pouring rain and in zero-degree weather.

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