砷

Earthworms can consume 30 times their own body weight each day and the super worms ingest large quantities of potentially toxic metals such as arsenic, lead, zinc and caesium, Dr Hodson told the science festival.

哈德森博士告诉本次科技节，蚯蚓每天能吞下自身重量30倍的东西，超级蚯蚓能咽下大量的潜在有毒金属，如砷、铅、锌和铯。

In the nature, arsenic is one of the wide distribution toxic trace element and carcinogen.

砷是一种具有毒性且分布相当广泛的微量元素之一，并且已被认定为是致癌物质之一。

A new method was developed to assess the bioavailability of arsenic in the sediments by using an iron oxide/cellulose acetate membrane.

利用自制的氧化铁／醋酸纤维素复合膜对沉积物中砷的生物有效性进行评估。

Cementation has also been suggested , demonstrated, and may be appropriate, for the removal of arsenic from drinking water.

粘结也已经被建议、示范，而且对饮用水的除砷可能是适当的。

This paper considers only three unit processes for arsenic removal, namely precipitation, adsorption and cementation.

本文认为只有三个砷去除工艺单元，分别为沉淀、吸附、胶结。

Arsenic has been a common additive in factory chicken feed for nearly 50 years.

砷 在近50年来已成为鸡饲料工厂中的一个普遍的添加剂。

But as a extreme poison, arsenic could induce many cytogenetical changes,such as chromosome loss, breakage and sister chromatid exchange and so on.

但砷剂同时又是一种剧毒物质，可引起染色体断裂、丢失、姊妹染色单体互换等细胞遗传学改变。

The ore-forming material sources of the Baiyangping copper-cobalt-silver polymetallic deposit have been studied by the characteristics of isotopic compositions of S, Pb, C, O, and H, and the Co/Ni ratio of cobaltite.

中文摘要：利用白秧坪矿床的S、Pb、C、O、H同位素组成特征和辉砷钴矿的Co/Ni比值特征，对成矿物质来源进行了分析。

Arsenic is a contaminant to be controlled preferentially in China.

砷在我国是优先控制的污染元素。

Preservatives in common use include arsenic, copper sulfate and creosote etc.

常用防腐剂包括砷、硫酸铜和木馏油。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐