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In this thesis, the present situation of heavy metals pollution and the physical and chemical properties of soils and the enrichment situation of heavy metals (Cd、 Hg、 Pb and Cr) in the vegetable body in the Harbin city greenbelt was investigated and evaluated. The results were showed as follows:The four heavy metals all polluted greenbelt soil by different degree in Harbin. The pollution of hydrargyrum is the most serious and reaches to the heavy pollution. The next pollution is plumbum, cadmium and chrome.

本文针对哈尔滨市区城市绿地重金属污染状况、土壤的理化性质,以及重金属(Cd、Hg、Pb和Cr)在植物叶片的富集情况进行了分析,并且对哈尔滨市区重金属污染状况进行了综合评价,结果表明:(1)哈尔滨市绿地土壤表层这四种重金属都有不同程度的污染,其中以汞的污染最为严重,达到了重污染;其次是铅和镉,铬的污染较小。

He made discoveries relating to a mercury chloride called corrosive sublimate.

他发现了氯化汞的升华现象,由此制备而成的药膏可用来治疗被腊泽斯描述为"瘙痒"的症状,也就是今天所说的疥疮。

The purpose of the circuitry is to supply electrical power to the ignition plug at the precise moment determined by either of the two sensors-- the air speed switch or the mercury inertial switch.

的目的,电路是供应电力给点火插头在适当的时机取决于任何两个传感器-空气高速开关或汞的惯性开关。

Based on these, some typical groups of MSW were collected and analyzed.

在此基础上,收集了一些典型的城市垃圾组分,分别对其作了工业分析和元素分析,测定了其中重金属汞的含量,分析了我国垃圾中可能的重金属来源。

The method of using formaldehyde buffer solution a b sorption-hydrochloric pararosaniline spectrophotometry to determine sulfur diox ide in air has higher sensitivity and good selectivity,and prevents from adoptin g mercurial absorbent.But the conditions in lab are not well controlled,the v alue of reagent blank and standard curvilinear slope can't accord with the one s tipulated in"Methods for Air and Waste Gas Monitoring and Analysis".Some opra tional techniques for SO2 determination in lab are introduced for reference.

文摘:以甲醛缓冲溶液吸收-盐酸副玫瑰苯胺分光光度法测定空气中的二氧化硫,方法灵敏度高,选择性好,避免了使用含汞的吸收液,但如果实验条件控制不好,试剂空白值及标准曲线的斜率就会不符合《空气和废气监测分析方法》中规定的值,本文着重从操作技巧方面对二气化硫测定的实验室质量控制进行分析,仅供参考。

The Sable's death brings up more questions about Mercury's future.

的紫貂的死带来了更多的疑问汞的未来。

So it is meaningful for environmental, biological, medicinal to study the speciation analysis for mercury.

因此研究测定环境中汞的形态的分析方法具有重要的环境科学、生命科学及医药科学意义。

Around 1150, the Indian mathematician and astronomer Bhaskara described in his Siddhanta Siromani a wheel with containers of mercury around its circumference.

大约1150 ,印度天文学家和数学家的巴斯卡拉中描述他的瓦希丹塔Siromani一个车轮与汞的容器周围围。

Increased exposure to mercury through thimerosal containing vaccines is one of the most important issues at hand.

目前最严重的问题是含有thimerosal的疫苗,导致汞的暴露在增加中。

For this purpose boric acid powder sprinkled over the napkins, or a rinse of 1 in 4,000 mercuric chloride or of the recently introduced non-toxic substance "diaparene" Benson

为酸的硼酸的这个目的粉末在餐巾纸上喷洒了,或一清洗1在里面4,000汞的氯化物或最近介绍了非有毒物质& diaparene &本森et al。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

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