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The research progress of CO2 hydrogenation synthesize dimethyl ether has been reviewed in recent years.

综述了近年来二氧化碳加氢合成二甲醚的研究进展。

Dimethyl Ether is a new and promising alternative fuel with ultra low emission in the world.

二甲醚燃料是国际上近年来新出现的很有发展前途的超低排污代用燃料。

In this paper, the catalyst and process of dimethyl ether from syngas were studied.

合成气一步法制二甲醚是近年来开发的一种新技术,相对于传统的两步法合成工艺,即先合成甲醇再脱水制二甲醚,合成气一步法合成二甲醚因其热力学上的有利性和经济上的合理性,成为C1化学研究的一个热点。

The latest researches in dimethyl ether as a clean fuel and its catalytic combustion were reviewed.

介绍了近年来二甲醚作为一种清洁能源的研究状况,进行了二甲醚的催化燃烧研究的初探。

The discoveries of feathered dinosaurs have provided some of the most significant evidence supporting the dinosaurian origin of birds from China.

特别是近年来在中国带羽毛恐龙的发现,对鸟类的恐龙起源假说提供了很多有意义的证据。

In recent years, medical science progresses, the Gram-positive bacilli have a more in-depth study. Here on Gram-positive bacilli in the mononuclear cells of Listeria monocytogenes, Diphtheroid bacilli, erythema silk erysipelas bacteria of Clostridium perfringens and Clostridium difficile, Bacillus anthracis and Nocardia infections, Detection and treatment are reviewed.

近年来,医学科学不断进步,对革兰阳性杆菌有了更深入的研究,为此就革兰阳性杆菌中的单核细胞增生性李斯特菌、红斑丹毒丝菌、产气荚膜梭菌、艰难梭菌,炭疽杆菌以及诺卡氏菌的感染、检测方法及治疗作一综述。

The issue of information security and confidentiality is not confined to military, polity and diplomatism, new applications such as business, finance, e-commerce and e-government, and so on are all closely related with the information confidentiality.

近年来随着信息化的普及,对信息特别是存储文件的安全性和保密性提出了越来越高的要求,安全保密问题已经不仅仅涉及军事、政治和外交,新的应用如商业、金融、电子商务和电子政务等等无一不与信息保密息息相关。

Spinosad is a recently developed macrolide that has high efficacy hi killing Lepidoptera, Diptera, and Thysanoptera.

多杀菌素是近年来新开发的大环内酯类杀虫剂,对鳞翅目、双翅目和缨翅目害虫有极好的灭杀效果。

In recent years,foreign direct investment on economic development in western China's increasingly prominent role.

摘 要:近年来,外商直接投资对中国西部经济发展的作用日益显著。

The quality of agricultural products is direct impacted by environment of product area.

近年来,农产品质量安全问题日益成为社会关注的热点问题。

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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。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。