Meanwhile, some problems on upper air sounding balloon that should be solved at present are pointed out.

同时指出了目前高空探测气球应解决的若干问题。

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There were 15 minutes between the first air raid alert and the sounding of the all-clear signal.

从第一个空袭警报到警报解除号音其间有15分钟。

《柯林斯英汉双解大词典》

Adding to the surreal atmosphere in Harrisburg that day was the sounding of an air raid siren that rang out through the capital city.

那天，除了哈里斯堡诡异的气氛外，空袭警报声一直传到首都。

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Michele Bachmann gets second place, for rather cheesily announcing she was running live on air and not sounding far out.

BBC: Did anyone miss Snow White?

This time, the people sounding the alarm are air traffic controllers.

NPR: FAA Accused of Ignoring Safety Warnings

The U.S. bans export to lots of banal-sounding firms such as London's Atlas Air Conditioning, SIRM Holdings in Rome and Vinale Tours in Cancun, Mexico.

FORBES: Customs Solution