Now new research has found a possible mechanism to explain Mars' rusty color without liquid water.

现在新的研究已找到了一个可行的原理来解释在无液态水的条件下火星的锈红色是如何形成的。

youdao

Some other methods such as simple extraction methods, grinding without liquid nitrogen extraction, micro-extraction method were also used.

在此基础上又提出了快速制备法、简易提取法、无需液氮研磨提取法、微量提取法等多种方法。

youdao

youdao

Arson investigators knew about the concept of flashover, but it was widely believed to take much longer to occur, especially without a liquid accelerant.

NEWYORKER: Trial by Fire

The challenge involves trying to swallow a tablespoon of cinnamon powder in under 60 seconds without drinking any liquid.

FORBES: An ER Doctor's Perspective on "The Cinnamon Challenge": Don't Even Think of Doing It

Unlike other technologies, Sequesco says it can convert carbon into liquid fuel without sunlight, which would avoid the Achilles heel of similar technologies.

FORBES: Magazine Article