砷的

Objective To understand the situation of secondary skin cancer of hyperkeratosis of skin spot caused by coal-burning type of arsenic poisoning.

目的 了解燃煤型砷中毒皮肤角化点继发皮肤癌变的情况。

There are coal, iron, sulfur, arsenic, lead, zinc, fluorite, Iceland spar, barite, crystal stone, gypsum, limestone, silica, clay and other 20 kinds of mineral resource. It also has proven the reserves of 3.3 billion tons of coal, There are rich seam for the development and utilization of coal-bed methane, coal-producing counties are key.

境内有煤、铁、硫、砷、铅锌、萤石、冰洲石、重晶石、水晶石、石膏、石灰石、硅石、粘土等20余种矿产资源，已探明煤炭储量33亿吨，煤层中蕴藏着丰富可供开发利用的煤层气，是全国重点产煤县。

In this paper,the design principles and methods of the super-abrupt junction GaAs varactor diode has been discussed.

本文详尽地讨论了砷化镓超突变结变容二极管的设计原理和方法。

From results of pot and laboratorial experiments, and field investigation, it showed that behaviour of As in soil-plant system was related to soil pH.

盆栽试验、吸附实验和调查研究表明，砷在土壤-植物系统中的变化与土壤pH值关系密切。

A non metal lic element,such as arsenic,that has some of the chemical properties of a metal .

准金属，类金属具有一些金属化学特性的非金属元素，例如砷

We have investigated magneto transport in gated GaAs two-dimensional electron gases.

我们研究了具闸极的砷化镓二维电子气之磁传输。

Objectives To detect the methylation of P15(superscript INK4B) gene in patients with myelodysplastic syndromes and to investigate the demethylating effects of decitabine and arsenic trioxide (As2O3). Methods The bone marron mononuclear cells from 14 MDS patients were collected.

目的 检测骨髓增生异常综合征患者P15(上标 INK4B)基因甲基化状况；探讨5-氮杂－2'-脱氧胞嘧啶和三氧化二砷(As2O3)对MDS患者细胞的去甲基化作用。

The occupational exposure of mothers, fish intake, and metal concentrations in meconium had affected the infant growth.

研究结果显示母亲的职业暴露、鱼摄取量与胎便金属浓度，特别是汞和砷会影响新生儿生长状况。

Results The contamination of arsenic and mercuric have basic controlled, but the lead and cadmium contamination seriously.

结果 我国食品中砷、汞污染状况已基本得到控制，但铅、镉的污染突出。

Based on field geological properties and chemical analysis results,the metallogenetic factors and genesis of high-As coal in southwestern Guizhou Province are disscused in this paper.

根据野外地质特征，结合微量元素和稀土元素分析结果，探讨了黔西南高砷煤的成因。

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。