Precursor ion scanning refers to monitoring for a specific loss from the precursor ion.

前体离子扫描是指监测前体离子的特定损失。

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The acquisition system of earthquake precursor data is one of the key devices for digital earthquake precursor station, its technical target and property have important influence on data quality.

地震前兆数据采集器是数字化地震前兆台站的关键性设备之一，其指标、性能对前兆观测数据质量有重要影响。

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Whether the precursor is obvious is correlated to rock the character, and the precursor of AE rate is more apparent than the precursor of AE energy rate comparatively.

岩石的破坏前兆是否明显跟岩性有关，相比较而言，岩石破坏时的声发射率前兆比声发射能量率前兆更为明显一些。

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At The Rockefeller University in New York, she is currently studying how skin forms from precursor stem cells, looking for clues that could help researchers understand how defective stem cells can cause cancers and other disorders.

VOA: standard.2010.03.29

They're derived from a precursor called triacylglyceride, which is as glycerol molecule with three fatty acid chains dangling off of it.

它们来源于一种叫三酰甘油的前体,由甘油分子上连接了,三个脂肪酸链构成

耶鲁公开课 - 生物医学工程探索课程节选

We talked about the artificial hip which is a modern precursor of the splint I talked about before.

我们之前说到的人造髋关节,就是由固定腿部的夹板衍生而来

耶鲁公开课 - 生物医学工程探索课程节选

Put simply, a lack of innovative thinking is the precursor to a brand in decline.

FORBES: Leadership Lesson: The Difference Between Google and Apple

High or low unemployment is the effect of past economic conditions, not a precursor of future ones.

FORBES: Hiring . . . Chicken or Egg?

The slide of 1994 was a precursor of nothing -- just momentarily higher interest rates.

FORBES: The Hedger: An optimist on the sidelines