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Objective: To set up a resonance light scattering method for determination of trace copper in water sample with the sulfhydryl cotton separation-enrichment method.

目的:结合巯基棉分离富集方法,建立一种测定水中痕量铜的共振光散射新方法。

A method for the determination of trace Pt, Pd, Ir and Au in ores by copper fire assay collection-glow discharge mass spectrometry was developed.

对利用铜试金预富集后辉光放电质谱法测定贵金属矿样中痕量Pt、Pd、Ir、Au的方法进行了探索性研究。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力