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Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

在磷酸介质中,硫氰酸根对溴酸钾氧化茜素红的褪色反应具有催化作用,据建立了催化光定痕量硫氰酸根的新方法。

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Isobornyl ethyl ether was prepared by ethoxylation of camphene with absolute ethanol in the presence of DCP heat-resistant ion exchange resin.

工业莰烯在耐高温离子交换树脂DCP催化作用下与无水乙醇反应生成了异龙脑基乙醚。

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This process involves cloud seeding – when various substances are put into clouds in an attempt to cause rain.

其中包括云种散播——将多种物质放入云中,通过产生降

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FT News Briefing

It is catalysing something in South Africa, but there is a big slip between cup and lip and we'll have to see whether this really does accelerate the transition.

它在南非,但杯口和嘴唇之间存在很大的差距, 我们必须看看这是否真的会加速转变。

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