查询词典 PAHs

Most PAHs do occur alone in the environment.

绝大多数的多环芳烃在环境中不是单独存在。

Lots of efforts have been devoted to biological treatment of PAHs contaminated soil.

本文讨论了处理多环芳烃污染土壤的可行技术。

Rather they are found as mixtures of two or more PAHs.

绝大多数的多环芳烃在环境中不是单独存在，它们往往是两个或更多的多环芳烃的混合物。

For these parts the maximum concentration for all PAHS is 200 mg / kg.

这些部件的全部多环芳烃化合物的最大含量为200mg / kg。

The distribution of PAHs in the ambient air was reported in Xuzhou in the autumn.

报告了徐州市区秋季环境空气中TSP上多环芳烃的分布状况。

Finally, the methods of minimization and purification for PAHs are mentioned.

最后给出了多环芳烃减量化方法和净化措施。

Under the optimum conditions, good linear work curve was obtained by this method to determine four kinds of PAHs.

选择最大荧光峰值位置对四种多环芳烃做工作曲线，呈现较好的线性关系。

Tween 80 at supraCMC resulted in reduced PAHs concentrations in wheat root and enhanced phenanthrene and pyrene concentrations in wheat stem and leaf.

在培养40天后，CMC以上Tween 80使小麦根中菲、芘和苯并芘含量下降，却促进了小麦茎叶中菲和芘的含量。

The results showed that the method can meet the technical requirements on the soil sample test and analysis in the national survey of soil pollution.

本研究所建立的土壤中PAHs和PAEs的GC-MS快速分析方法及其质量控制措施可以为全国性土壤污染状况调查数据的科学性和准确性提供技术保障。

DDT, PAHs, PCB, organo-metals, fossil remains, and biochemical markers such as organic carbon compounds can provide indicators of past natural and anthropogenically induced changes.

在沉淀物里，矿物质含量，磁化率，主要，微量元素，稳定同位素，混合的具体的同位素和有机的地球化学(例如DDT，对氨基苯甲酸，PCB，organo 金属)，化石保持，并且象有机的碳化合物那样的生物化学的记分员能提供经过自然的指示器，anthropogenically 引起变化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。