查询词典 dioxide

The methods used include chemical oxidation, direct oxidation at high temperatures using high oxygen pressures, and the crystal growth of stoichiometric lead dioxide in the solution phase.

所使用的方法包括化学氧化法，在高温下用高压氧直接氧化以及化学计量准确的二氧化铅在溶液相中的晶体生长。

In addition, many small businesses there is no perfect environmental protection facilities, high levels of lead smelting process steam, lead dust, sulfur dioxide and other harmful substances into the atmosphere, not only the job-site labor conditions also cause serious environmental pollution.

此外，许多小型企业没有完善环保设施，铅冶炼过程中的蒸汽高，到大气中铅尘，二氧化硫和其他有害物质，不仅是施工现场劳动条件，同样会造成严重的环境污染。

B -Lead dioxide can be prepared by acid formation of lead battery positive plates[13] or electrooxidation of lead perchlorate.

PbO能够通过下列方法来制备：在酸性环境制备铅电池的阳极；高氯酸铅的电氧化。

Researchers believe that this part of the male long-term high concentration of nitric oxide, a sulfur dioxide, carbon monoxide and lead the work environment, motor vehicle exhaust, and nitric oxide, lead, most likely to damage sperm quality.

研究人员认为，这部分男性长期在高浓度的一氧化氮、一氧化硫、一氧化碳和铅等汽车废气环境中工作，而一氧化氮、铅等，最容易破坏精子质量。

In 1970, a law was passed prohibiting the development of more than the specified level of lead, carbon monoxide, sulfur dioxide, nitrogen oxide, volatile organic compounds, ozone and various toxic substances.

1970年，通过了一项法律，禁止那些铅、一氧化碳、二氧化硫、氮氧化物、挥发性有机化合物、臭氧以及其它有毒物质超过规定标准的生产。

The CO2 flow rate has important effects on the dyeing behaviour and levelness of PET fabric in supercritical carbon dioxide.

摘要超临界CO2流体的流速会影响染料在超临界CO2介质中对涤纶织物的上染性能和染色均匀性。

Researchers have tried to mimic the process used by plants with experimental systems that use some of the components of photosynthesis, such as chlorophyll, which makes plants green and helps trap light , and catalysts which facilitate the process of converting carbon dioxide, water and sunlight.

研究人员一直试图用实验体系模拟植物的光合作用。他们想利用一些光合作用中的原料，例如让植物呈现绿色并有助于俘获光子的叶绿素、促进二氧化碳转化过程的催化剂、水和阳光。

Using limekiln gas which was exhausted during theprocess of producing calcium carbide to reaction with water glass, did single-factor experiments and discussed the effect of factors on carbonization process, ratio of production and performance of product ,such as temperature and time of reaction, the density of raw material and carbon dioxide etc.

利用电石生产排放的含二氧化碳的废气—石灰窑气和水玻璃进行碳化反应，进行了单因素试验，探讨反应温度、反应时间、原料配比及二氧化碳浓度等因素对碳化过程、产率及产品性能的影响。

Carbon dioxide can ' t make the match burn, but it can make the limewater turbid.

二氧化碳不支持燃烧并可使澄清的石灰水变浑浊。

When clear limewater is poured into the gas-bottle full of carbon dioxide, the solution turns cloudy.

实验4：把澄清石灰水中倒入充满二氧化碳气体的集气瓶，溶液变浑浊。

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。