A duplicate sample shall be sealed after inspection.

检验后须封存一份复样。

youdao

You may assume that the value for a is nonzero. Your program should be able to duplicate the following sample run.

你可以假设该值是一个非零值。

youdao

When a country has lots of money, lots of very talented engineers and access to just one sample of another country's technology, then it does not take very long to duplicate it.

当一个国家有很多钱、很多很有才华的工程师、能访问另一个国家的技术样本，那么复制它就不会花很长的时间。

youdao

He suffered a key setback in recent years when several groups failed to find the right kinds of spherules or otherwise duplicate the results of his team's work and, worse, when a spherule sample from Younger Dryas rocks proved to be only 135 years old.

WSJ: Matt Ridley on New Support for a Global-Cooling Theory | Mind & Matter