查询词典 iron-stone

Widespread iron bacteria itself to the role of Concentrations, and allows a variety of ferrous oxide reduction in the role and dissolved minerals precipitate role in the formation of different iron minerals and mineral nature of the changes significantly affected the soil and water geochemical characteristics.

广泛存在的细菌本身对铁具有富集作用，并可使各种含铁矿物发生氧化还原作用和溶解沉淀作用，形成不同的铁矿物并导致矿物性质的变化，极大地影响了土壤和水体的地球化学特征。

Municipal engineering ; biological filtering layer ; nutrition condition ; iron and manganese oxidizing bacteria ; removal of iron ; removal of manganese

市政工程；生物滤层；营养条件；铁；锰氧化细菌；除铁；除锰

When kisses the iron bacteria massive reproductions after the hard surface forms the membrane, the biological iron degeneration pollutant organic matter has become the leading role.

当亲铁细菌大量繁殖在铁表面形成菌膜后，生物铁降解污染物有机物就成了主导作用。

State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, ChinaSoil and sediments are anoxic and anaerobic environment, often containing high levels of Fe due to the interaction of iron reducing bacteria with iron oxide minerals which are widely present in subsurface.

在土壤和沉积物的自然厌氧环境中，铁氧化物可被铁还原菌等微生物异化还原产生Fe，形成的Fe/铁氧化物表面结合铁系统具有还原活性，可使有机污染物还原转化。

"Gallium acts as a Trojan horse to iron-seeking bacteria," said Singh. Because gallium looks like iron, inading bacteria are tricked, in a way, into taking it up.

&镓在细菌寻找铁元素的过程中扮演'木马'病毒的角色，&Singh解释说，因为镓与铁元素很相似，被蒙蔽的入侵细菌误将镓做为铁摄入体内。

The resistance to Cr and regeneration character of biological iron sulfide composites were studied. The composites consisted of sulfate reducing bacteria and nanosized iron sulfide produced by SRB. A new reduction-regeneration recirculation process for treating chromium-containing wastewater and reclaiming chromium was developed with the regeneration character of the composites.

研究了由硫酸盐还原菌与其原位生成的纳米硫铁化合物组成的生物硫铁复合材料的耐铬性能和再生性能，并利用其再生特性，设计了处理高浓度含铬废水及铬资源化的还原－再生循环处理工艺。

The iron carbide constituent of steel and cast iron; very hard and brittle.

铁的碳化物，组成钢和铸铁，极硬极脆。

In the experiment of fluid bed, when the iron ore has been reduced for 120 minutes with the use of CO·CO〓·H〓 mixture containing 20%CO〓 at the temperature of 700℃, the reductivity and metallization can both exceed 90%, and the rate of iron carbide exceeds 73%.

流化床实验中，在温度700℃用含CO〓为20％的CO·CO〓·H〓混合气体还原铁矿石120分钟可获得还原度和金属化率大于90％的还原产品，碳化铁率超过73％。

At the same time, Ministry of Land and Resources of 2000 since the new expansion iron and steel, electrolytic aluminum and cement with limestone land enterprises to carry out an inspection of the iron alloy, calcium carbide industries such as the supply of land taken corresponding measures.

与此同时，国土资源部对2000年以来，新扩建钢铁，电解铝，水泥用灰岩土地的企业进行检查，铁合金，电石等行业土地供应采取了相应的措施。

In this paper, the recent research status on preparing iron carbide and the effects on formation of iron carbide are summarized elaborately, such as reacting temperature, reduction atmosphere, microstructure of raw material, gangue component, depositio...

本文对制备碳化铁的研究现状，以及反应温度、还原气氛、原料微观结构、原料脉石成分、碳沉积、含硫气体等因素对碳化铁生成反应的影响进行了详尽的文献综述。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。