铬

Additionally, the nanodots were measured by EFM, and the experiment indicated that the charge of chromium oxide is negative. As the height of chromium oxide increases , negative charge of chromium oxide increases.

此外，我们用静电力显微镜观察铬氧化点的静电荷分布情形，发现在铬氧化点内的静电荷为负电荷，并且随著铬氧化点高度的增加而变多。

The present paper mainly focused on the phase equilibria and crystallization separation of the multi-component aqueous salt system for cleaner production of chromium trioxide in the electro-synthesis process. And these diagrams of the above system was studied for the first time.

本文研究了该产业链中电催化法生产铬酸酐清洁工艺中多元水盐体系相平衡，首次构筑了体系相图，建立了铬酸酐多元复杂体系的结晶分离方法，为电催化法生产铬酸酐工艺路线的设计及优化提供理论依据，论文的主要内容包括如下几个方面： 1。

A new technology for making chromium trioxide and potassium nitrate simultaneously by using nitric acid to decompose potassium dichromate has been analyzed according to phase diagrams of the K2Cr2O7-CrO3-KNO3-HNO3-H2O quaternary system at 0oC, 25oC and 45oC based on experimental results.

以实验测得的K2Cr2O7-CrO3-KNO3-HNO3-H2O四元体系相图为依据，对用硝酸酸化重铬酸钾联产铬酸酐和硝酸钾工艺过程进行分析，确定了铬和钾利用率最大时的操作条件。

P and 〓Si MAS NMR results show that both Si-OH groups on the pillars and P-OH groups on the layers react with Cr〓 to form Si-O-Cr and P-O-Cr bondings in Cr〓O〓-SiO〓-ZrP, resulting in a more homogeneous dispersion of the chromium oxide in the interlamellar region.

用〓P和〓Si NMR表征时同样观察到传统方法中氧化铬主要与硅柱作用，与层板几乎不作用，而新方法中氧化铬与层板和硅柱均有强相互作用，使氧化铬更均一地分散于层间区域。

However, in the business card printing and membership card in case of making paper out of the dirt and friction are suites-rolling up dew producing copper, dirt, diabetes'mellitus to marketizing to get rid of CR rolling dirt broken, you need to start from the dirty yellow amiodaron potassium in addition to, and then use special equipment electrized chromeplating, more time-consuming.

但在制卡和会员卡制息历程洋如逢纸弛掉下的砂粒摩擦，不常不兵版面铬层轧碎后露铜，爆发感脂上不净弊病，给打消镀铬层轧碎上不净出格便当，需不后用黄胺酸钾不兴不净，然后再用兼用摆设通电镀铬，较不省工夫。

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 effect of bacteriostatic such as penicillin, norfloxacin, nalidixic acid, potassium dichromate and tatin were studied individually. The orthogonal design was used in this experiment and the software STATISTICA6.0 was employed to analyse the result. The result showed that the potassium dichromate was the best bacteriostatic among those bacteriostatices.

研究了青霉素、萘啶酸、制霉菌素、重铬酸钾和氟哌酸5种抑制剂对分离土壤放线菌的影响，其中以重铬酸钾的分离效果最好，其次为制霉菌素；通过正交试验研究了重铬酸钾、萘啶酸、制霉菌素3因子组合对放线菌分离的影响；最后用STATISTICA6.0进行分析。

Chromium ore samples were fused by alkali and then leached out by hydrochloric acid. After the analytical lines of the elements were selected, the conditions of sample uptake, carrier gas flow, cooling gas flow and RF power were optimized with the system of SeaSpray nebulizer and cyclone spray chamber, based on the principle of best signal stability. The determination of chromium, aluminum, iron, magnesium and silicon in chromium ores was fulfilled.

铬矿石样品经碱熔融和盐酸浸取后，选用SeaSpray雾化器和旋流雾室，选定了待测元素的分析线，以信号的稳定性为原则，优化了样品提升量、载气流量、冷却气流量和入射功率，实现了电感耦合等离子体原子发射光谱法对铬矿石中铬、铝、铁、镁和硅等主量成分的测定。

The clean production audit of chrome salt industry will provide a reference for facilitating clean production in chrome industry, which is propitious to sustainable development of chrome industry.

对铬盐行业清洁生产审核的探讨为铬盐企业推行清洁生产提供了范例，有利于铬盐行业的可持续发展。

Chromic dermatitis: A skin affliction resulting from attack on human tissues by salts of chromium and chromic acid.

铬毒皮肤炎：人体产皮肤组织被铬盐和铬酸感染而引致的皮肤病。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。