查询词典 arsenic

Gelena is pretreated by sulphatization, forming a layer of PbSO_4 film on its surface. The film has no effect on arsenic minerals and gelena is depressed during reverse flotation.

通过硫酸化预处理，可使方铅矿表面形成一层PbSO_4覆盖膜，而砷矿物不受影响，从而在反浮选中，方铅矿受到抑制。

Arsenic is a notorious environmental toxicant known as a carcinogen in human beings.

中文摘要砷为环境中的毒性物质，也是人类可能的致癌因子之一。

The method is simple,rapid and with high sensitivity,and can be applied for the determination of trace amounts arsenic in Tricholoma giganteum.

该方法简单快速，灵敏度高，可作为药用真菌巨大口蘑中微量砷的测定方法。

The contents of mercury, arsenic, lead and cadmium in Trionyx sinensis muscles in Zhejiang province were analyzed in this paper.

测定了浙江中华鳖肌肉中总Hg、As、Pb和Cd 4种重金属的含量。

A pot experiment using sterile and unsterile arsenic-contaminated soil was carried out to study effects of different inoculation methods of photosynthetic bacteria on the growth and As uptake of tobacco.

采用灭菌以及未灭菌的湖南石门砷污染土壤（145.70 mg kg-1）的盆栽试验，研究光合细菌的不同施用方式对烟草Nicotiana tabacum L。

Arsenic increased lipid peroxid ation in rat tissues by a mechanism independent of glutathione levels［J］.

砷防治研究动物种属选择的探讨［J］。中国地方病防治杂志，1997，12(6)：352［20］李富君，孙贵范，吕秀强，等。

The figure about annihilating rate of inorganic arsenic under boiling experiments with water.

刚浏览了两本书中有关附图的标题的写法，记了些笔记，有兴趣的朋友可看看

Is it true the arsenic blackens silver?

砒霜真会让银发黑吗？

Generally, arsenic in coagulated sludge would not release into water again.

一般情况下，沉渣中的砷不会再次进入水中。

A compartmented rhizo-bag culture system was used to study the effects of exogenous phosphorus on arsenic fractions in the rhizosphere and their bioavailability to rice (Oryza sativa L.) and wheat Triticum aestivum L.

采用土－土根袋培养的方法研究了两个浓度的外源磷对苗期小麦和水稻根际砷形态分布及其生物有效性的影响。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。