It begins with Maarten Schmidt who hypothesized that star formation rate (SFR) was related to the surface density of atomic hydrogen gas in the cloud.

最早是Maarten Schmidt猜测恒星形成率(SFR)与云层中氢原子气体密度有关。

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The method for the determination of trace mercury in water samples by hydride generation atomic absorption spectrophotometry after cloud point extraction was proposed.

提出了浊点萃取预富集氢化物发生-原子吸收光谱法测定痕量汞的新方法。

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Taking the hydrogen atom as an example, the author designs a precise, speedy and convenient application program to draw the atomic orbital and electronic cloud with MATLAB language.

以氢原子为例，以MA TLAB为程序开发语言，设计了一种精确、快速、简便地绘制原子轨道和电子云图形的应用程序。

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One of LRO's instruments, the Lyman Alpha Mapping Project (Lamp), detected enhanced concentrations of mercury and atomic hydrogen in the cloud from the demise of the twin spacecraft.

BBC: Nasa reveals new information about moon probes crash sites