However, scientific test has confirmed that the colorant used is iron oxide and not cobalt.

然而，科学实验证实，该着色剂是铁氧化物和不使用钴。

youdao

Surprisingly, the idea that experiencing pain reduces feelings of guilt has never been put to a proper scientific test.

令人惊讶的是，经历痛苦来减少负罪感这个想法从未被严谨的科学测试过。

youdao

Every week, I have a scientific test lesson, during the time we will make a lot of toys by myself, and learn the knowledge.

我每周都上科学试验课，每次都能亲自动手做非常好的玩具，学到好多的科学知识。

youdao

They worked with American scientists and engineers to develop and test new rockets for military and scientific use.

VOA: special.2009.06.10

This wasn't a scientific test, because everyone has different visual acuity and the differences we see are ultimately subjective.

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To even reasonably run a scientific test, the iPhone should have been sitting on a non-metallic pedestal inside an anechoic chamber.

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That evidence does not have to meet any kind of scientific test: pretty much any pattern of ink on paper will do the job.

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