Thomas admitted that testing could take longer if NASA follows the advice of independent engineers at the National Research Council.

托马斯承认，如果美国宇航局听从了国家研究委员会独立工程师的建议的话，那测试花费的时间会更长。

A new report by the National Research Council warns that the problem of space junk in earth's orbit is on the verge of getting out of control.

一份由国家研究委员会作出的新报告警告称，地球轨道上太空垃圾的问题濒临失控的边缘。

Mr Smith was addressing a meeting organised by an independent committee set up by the National Research Council to probe the causes of unintended acceleration.

史密斯在由一个独立委员会组织的会议上发表上述言论。该委员会由美国国家研究委员会成立，负责调查丰田汽车无故加速的原因。

Highway Capacity Manual. Transportation Research Board, National Research Council, 1985.

《公路容量手册》运输研究局，国家研究会议，1985。

Enric Sala is a National Geographic Fellow and associate professor at Spain’s National Research Council.

——西班牙皇家研究委员会国家地理研究员，副教授Enric Sala。

But uncertainties over the environmental impacts of desalination make it hard to draw definite conclusions, the National Research Council concluded.

但去盐作用对环境影响的不确定性使得明确的结论难以得出，美国研究委员会下结论说。