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it is a golden, sticky liquid at room temperature.
常温下为粘稠状金黄色液体。
最后更新: 2012-08-17
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the concentration of sulphur dioxide by volume in air saturated with water vapor at room temperature is to be 5000 ±250 ppm (parts per million).
室温下潮湿的空气中二氧化硫体积的浓度为 5000±250 ppm (百万分之几)。
最后更新: 2018-11-20
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the sampling plan should be based upon the current and expected environmental conditions like the weather and the type of substance to be sampled, such as liquid chemical waste.
48. 取样计划的拟定应考虑到当前及预期的环境状况,例如气候和拟取样的物质类别,例如液体化学废物。
最后更新: 2016-12-04
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