Three benzene series in Methanol 甲醇中苯系物溶液标准物质
During the next three years, investigators compiled evidence that included hundreds of internal memos about benzene emissions.
接下来的3年里，调查员们收集了包括数百份关于苯排放备忘录在内的证据。
The catalyst active stability can be more fully recovered by regeneration carried out in three steps in succession, namely, benzene extraction, nitrogen blowing and coke burning.
按苯抽提、氮气吹扫、烧焦的顺序，分三个阶段进行催化剂再生，再生催化剂的活性稳定性得到更充分的恢复。
The performance of the three catalysts was studied in the catalytic combustion of volatile organic compounds (benzene, toluene and p-xylene) via the Gas Chromatogram analysis.
以气相色谱为检测手段，用常压连续催化燃烧装置考察了这三种催化剂对甲苯、苯、二甲苯的催化燃烧性能。
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