查询词典 in recent years

In recent years aromatic diamine derivatives with good photoluminescent and hole transporting properties have been widely used in organic electroluminescence devices.

芳香多胺系化合物不仅是重要的有机染料，而且具有良好的光稳定性和极好的传输性能，近年来已引起研究者的兴趣和关注。

EPDM (ethylene propylene diene monomer) rubber development improved rapidly in recent years, applied widespread in the industry.

中文摘要 EPDM (ethylene propylene diene monomer)橡胶近年来由於发展迅速，进而广泛的被工业界所应用。

Diesel engine technology developed fast in China, especially in recent years, driven by more stringent emission standards.

柴油机技术在中国发展很快，尤其是近几年更严格的排放法规的推动。

In recent years, due to nutrition, health requirements, the use of refined salt, salt processing in the process of adding a small amount of potassium iodide and other nutrients, and therefore there will be a "qualified" and "unqualified," the difference between table salt.

近年来，由于营养卫生的要求，在使用原盐加工为精制盐的过程中，添加了少量碘化钾（ KI 等营养物质，因而就有了"合格"与"不合格"食盐的区别。

In recent years, many partial differential equation problems are also appeared in life science and economics.

近年来，在生命科学、经济学中也出现了大量的偏微分方程问题。

In the mean time, information technology and digital city construction has gotten great achievements in recent years.

在这样的背景下，作为城市管理领域的一项实践创新，数字化城市管理模式应运而生。

In recent years, new ceramic clay of low dilatability and high heat-resistance coupled with relative ceramic glaze has been developed in our factory.

本厂一贯以质量第一、诚信待人为宗旨，希望能与各陶瓷厂家长期保持合作，提供更适应时代潮流的新型陶瓷材料。

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 personal income tax exemption volume law system as its tax revenue reduces the system, day by day also has become an important system relating to national economy and the people"s livelihood, but this system continuously has rarely had the change since 1994, but inhabitant"s income level unceasingly enhances, the price also unceasingly rises, in recent years our country promotes the housing system, the medical system, the social security system, the educational system and so on many reform measure, obviously, at present our country personal income tax exemption volume legal system and the development of economy and society are in disconformity, the function of adjusting income assignment gradually weakens, the unfair tax burden question extrudes day after day, The perfection of our country personal income tax exemption volume law system call is more and more high, the experts and the scholars also pays more and more attention to the research of this system.

个人所得税免征额法律制度作为一项税收减免制度，也日益成为了税法当中一项关乎国计民生的重要制度，但该制度自1994年以来一直鲜有变化，而居民的收入水平不断提高，物价也不断上涨，近几年来我国又推出住房制度、医疗制度、社会保障制度、教育制度等多项改革措施，显然，目前我国个人所得税免征额法律制度与经济社会的发展情况已不相适应，调节收入分配的职能逐渐削弱，税负不公的问题日渐突出，完善我国个人所得税免征额法律制度的呼声越来越高，专家和学者也越来越关注该制度的研究。

In this dissertation, We introduce some new methods on the local and global well-posedness theories of the dispersive equations in recent years.

在本文中，介绍了最近一些年来，在色散方程Cauchy问题的局部和整体适定性理论方面的新方法。

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。