查询词典 co-twin

Yet, the suspensions and closures are likely to have a much bigger impact on the region around Beijing, including major companies such as Beijing Eastern Petrochemical Co., Chinas largest manufacturer of polyvinyl acetate.

然而，关停措施可能会对北京周边地区的经济产生较大的影响，诸如北京东方石油化工有限公司(Beijing Eastern Petrochemical Co。)之类的大型企也会受到牵连。

Chinese food producer Bright Food Group Co.

中国食品生产商光明食品有限公司Bright Food Group Co。

Separately, Chinese steel producer Jiangsu Shagang Group Co.

另外，中国钢铁生产企业江苏沙钢集团Jiangsu Shagang Group Co。

The results show that a proper fraction of the secondary air could make the flame highly stable in the middle section within a wide range of flow rates,and have low emission of CO,specially for lower lean equivalence ratios.

结果表明，加入适当比率的二次空气，不仅能够在相当宽的流速范围内使火焰很好地稳定在中间段，而且能得到低水平的CO排放浓度，特别对较低当量比效果更为明显。

With the co-precipitation, using cross experiment, constitute of catalyst (include 2 equations), proportionment of precipitator, aged time, calcine temperature, had been discussed-how to influence the activity of catalyst. The activity will be primed if prepareing the catalyst with CuO:ZnO:CeO_2=6:9:10, using NaOH as precipitator, aged time 3h, calcining the calatyst at 450℃.

在共沉淀法中利用正交试验对催化剂中各种物质的配比量、沉淀剂类型、陈化时间和焙烧温度这4种因素进行了4水平分析，结果显示制备催化剂时使用的金属盐Cu(NO_3)_2、Zn(NO_3)_2和Ce(NO_3)_3的物质的量之比符合n_1∶n_2∶n_3=6∶9∶10、并且NaOH溶液作沉淀剂、3h陈化后在450℃焙烧，制得的催化剂催化效果最好，在130℃时CO转化率即达到99％以上。

LaCr_(1-x)M_xO_3(M=Co, Fe, Ni, Sn, Ti)and LaNi_(1-x)Ti_xO_3 compounds were synthesized by sol-gel technique in this paper. The thick film based sensors were fabricated and their gas-sensing properties were tested in the acetone, ethanol, normal propyl alcohol, carbinol, formaldehyde gases etc.

本文采用柠檬酸盐溶胶-凝胶法合成了LaCr_(1-x)M_xO_3(M=Co，Fe，Ni，Sn，Ti)和LaNi_(1-x)Ti_xO_3系列化合物的纳米粉体，并制备了厚膜型气敏元件，在丙酮、乙醇、正丙醇、甲醇、甲醛等有机气体中测试了它们的气敏性能。

Following are summary of our works:(1)The powders of LaCr_(0.9)Co_(0.1)O_3, LaCr_(0.9)Fe_(0.1)O_3, LaCr_(0.9)Ni_(0.1)O_3, LaCr_(0.95)Sn_(0.05)O_3 and LaCr_(1-x)Ti_xO_3(x=0.0-0.3) were single perovskite phase with orthorhombic structure. The gas-sensing properties of their thick film sensors were tested in the acetone, ethanol, normal propyl alcohol, carbinol and formaldehyde organic gases. The sensitivity of the sensors can not be enhanced effectively by doping Co、Fe、Ni、Sn elements in B-site of LaCrO_3. Ti dopant with proper concentration can greatly improve the gas-sensing properties, which make the sensor display higher sensitivity and quicker response-recovery characteristics.

所得结果摘要如下：(1)LaCr_(0.9)Co_(0.1)O_3、LaCr_(0.9)Fe_(0.1)O_3、LaCr_(0.9)Ni_(0.1)O_3、LaCr_(0.95)Sn_(0.05)O_3和LaCr_(1-x)Ti_xO(来源：ABfd1dC论文网www.abclunwen.com)_3(x=0.0-0.3)粉体为正交单相钙钛矿结构，其厚膜型气敏元件在350℃时对丙酮、乙醇、正丙醇、甲醇、甲醛等有机气体的气敏性能测试表明：0.1mol Co、Fe、Ni和0.05mol Sn元素在LaCrO_3的B位进行掺杂后，不能有效提高材料对以上测试气体的气敏性能；而Ti元素的适量掺杂可以极大地改善LaCrO_3的气敏性能，使之显示出对丙酮气体的高灵敏度和快速响应恢复能力。

This study examined the effect of the HO inhibitor zinc protoporphyrin Ⅸ on the expression of neuronal NOS mRNA and protein and also the plasma NO content in rats with recurrent FS. The goal was to study the effect of CO on the NOS/NO system.

本研究观察HO抑制剂锌原卟啉Ⅸ对FS大鼠海马神经元型NOSmRNA和蛋白表达及NO含量的影响，以探讨CO对NOS/NO体系的调节作用。

Methods A total of 60 rats were employed and equally divided into 5 groups, i.e. control, HPH, hemin, Tin Protoporphyrin and low concentration CO groups.

60只Wistar大鼠随机分为5组：正常对照组；低氧肺动脉高压组；血晶素组；锡原卟啉组；低浓度CO组；每组12只。

The speed of the coordinating reaction between pyridine and Co is higher than that between pyridine and Fe.

吡啶与Co结合的速率比Fe结合的速率快。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。