quaternary

常见例句

In their study, the scientists looked at quaternary ammonium compounds (QACs) that are used in many household cleaning goods.
在他们的研究中，科学家验证了在许多家居清洁产品中使用的季铵盐化合物。
"It is a long time coming and marks a turning of the tide in how we approach these extinctions of the Late Quaternary," she says.
她指出：“这标志着在接下来的很长一段时间内，我们将转向如何处理晚第四纪的灭绝。
The most powerful of feedbacks in the Arctic is sea ice and snow cover, said Miller, the lead author on a paper about past "Arctic amplification" in the journal Quaternary Science Reviews.
在北极，反馈最强的莫过于海冰和积雪，米勒说，他是第四纪科学评论杂志中关于过去“北极的放大效应”一文的主要作者。

Studies by the International Union for Quaternary Research conclude that some ocean levels have even fallen in recent decades.
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Together with our colleagues of the INQUA (International Union for Quaternary Research) focus area group on palaeoseismology and active tectonics, IGCP 567 started a new tradition of joint field workshops.
UNESCO: Tales set in Stone: learning from ancient earthquakes
There, the scientists themselves report that the anti-microbial agent has been known and used for years—a cationic polymer, like quaternary polyetheleneimine, which kills bacteria by tinkering with the molecular integrity of cell membranes.
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