金属物质

Conclude in compound of ionic coexistence, ionic equation, element, the in corroding iron of experiment of sex of compound composition analysis, dug, metal is appropriative important role, it is carrier with iron element knowledge especially, in chemistry experiment, material concludes and chemistry is calculated (oxidize to be calculated reductively especially) have a lot of window examination questions.

在离子共存、离子方程式、元素化合物推断、化合物成分分析、探究性实验、金属的腐蚀中铁充当重要的角色，非凡是以铁元素知识为载体，在化学实验、物质推断和化学计算都有许多亮点试题。

A mechanical or alloyed contact between different metals or other materials, as in a ''.

接触在热电偶中，不同的金属或其它物质之间机械的或掺杂的接触

The surface of the most metals corrodes due to moisture water, acids, salts and many other chemicals present in the atmosphere.

大多数金属表面的腐蚀是因为水份、酸、盐和许多存在于大气中的化学物质引起的。

A hypothetical substance that the alchemists believed to be capable of changing other metals into gold.

一种金术士认为能将金属变为黄金的假想物质。

Gray metal with high tensile strength. It is ductile, malleable, and resistant to atmospheric elements and all acids except strong alkalies.

钨是一种耐压强度较高的灰色金属，延展性很好，可以抵抗大气和所有除强碱外酸性物质的腐蚀。

These engine coolants contain chemicals that will stop metal corrosion.

这些引擎冷冻剂里含有一些防止金属腐蚀的化学物质。

Corrosives are substances that erode and deteriorate materials on contact, including metals , fabrics, and human tissue.

腐蚀剂是腐蚀和损坏所接触到的包括金属、纺织品和人体组织在内的材料的物质。

Set beer as an example, the mixing turbidity could be as low as below 0.5EBC. A kind of special filter part- filter candle sticks, which are a certain number of hollow metal sticks with special structure and constant space in between each other, is one of the best filter parts till now for its high efficiency and conveniency of cleaning. It is ideal diatomite filter equipment for its small operation space, high efficiency and low running cost.

经过滤的液体能有效除去液体介质中的颗粒物质、酵母菌和其他微生物，使过滤后的介质清澈，光亮（以啤酒为例，混合浊度可达0.5EBC以下）该机采用结构特殊的过滤元件---过滤烛棒，是若干根结构特殊间隙恒定不变的空心金属棒体，过滤效率高，易清洗，是到目前为止最优秀的过滤元件之一，该机占地面积小，生产效率高，运行费用低，是最理想的硅藻土过滤设备。

Two types of spheres have been found: one is composed of a solid bluish metal with flecks of white; the other is hollowed out and filled with a spongy white substance.

两种类型的领域已经发现：一种是组成一个坚固的蓝色金属flecks白色的，另一个则是掏空的和充满海绵状的白色物质。

In addition, herbal products may be contaminated with hazardous substances: dangerous plant chemicals, toxic metals, disease-causing micro-organisms, fumigants and pesticides.

此外， 可以用冒险物质：危险的植物化学制品，有毒金属，疾病引起的迷你有机体， fumigants 和杀虫剂污染草本植物产品。

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。