查询词典 arsenic

The present study has investigated biological effects of arsenic on clay pan yellow cinnamon soil, red soils (with high fertility and low fertility) and paddy soil.

通过室内培养及室外盆栽实验，研究了砷在粘盘黄褐土、红壤、水稻土上的生物学效应。

Results The effect of arsenic trioxide on breast cancer cell line MCF-7 depended on the phase and the dose.

As2O3可明显抑制乳腺癌细胞的生长，其机理主要是诱导乳腺癌细胞凋亡。

Objective To observe the outcomes of using different concentrations of arsenic trioxide at varying phases on the breast cancer cell line MCF-7 and to study the mechanism of this effect.

目的 观察不同浓度的三氧化二砷(As2O3)作用不同时间后对乳腺癌细胞系MCF-7的影响及其作用机理。

Almost all arsenic is removed as water passes through two containers. They hold river sand, pieces of iron and wood charcoal.

将两个容器装入河沙，铁屑和木炭，当水流流过两个容器时，几乎所有的砷都被过滤掉。

The environmental harm caused by using arsenic oxides in traditional surface post-treatment of electrolytic copper foil was avoided.

避免了传统工艺中电解铜箔表面后处理使用砷的氧化物对环境的危害。

Hydrogen peroxide as oxidizer and sodium carbonate as remover, arsenic, iron, nickel, calciumand lead are removed from copper-bearing mixture by neutralization and precipitation, then use the liquor thathave been filtrated react with the sodium carbonate to produce basic copper carbonae and make the quality of theproduct meet the export request.

采用氧化和中和沉淀方法，以H_2O_2作氧化剂、Na_2CO_3作脱杂剂脱除含铜混合液中的As、Fe、Ni、Ca、Pb等杂质，利用其与碳酸钠反应生产减式碳酸铜，并使产品质量达到出口要求。

Other elements that have allotropes include tin, sulfur, antimony, arsenic , selenium, and phosphorus.

其它具有同素异形现象的元素有锡。

Geological structures, such as anticlines and faults and sedimentary stratum, control the distribution of high arsenic coals.

高砷煤严格受构造、地层、沉积相的控制，分布于平行背斜长轴的断层两侧，愈靠近断层面砷的含量愈高。

At the time, it was the custom of winemakers to dry their casks and basins with arsenic.

当时的酿酒者通常用砷来干燥盛酒的盆和桶。

DMPS, or dimercaptopropane – 1 sulfonate, is a primary chelator for mercury and arsenic.

DMPS，或名 dimercaptopropane – 1 sulfonate是汞及砷的主要螯合剂。

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。