"With a laser pulse, you can tap that shell and make it ring like a bell," said physicist Till Rosenband of NIST, who built the existing quantum-logic clock.

“激光脉冲轻拍壳层产生了像铃声一样声音”，国家标准和技术研究所的物理学家Till Rosenband说，现有的量子逻辑时钟是由他开发的。

youdao

To break open the eggs tap them gently on the counter until there's a small dent in the shell.

在台上轻敲鸡蛋，直至在蛋壳上出现出现小凹陷。

youdao

As the Chinese tap U.S. technology to manufacture this gas (Shell already has a development deal with CNPC) its cost of gas will plunge and it may quickly be in a position to undercut the Russians and others on exports to Korea and Japan.

FORBES: Gazprom Bows To Shale Boom, Cancels Shtokman Plans