Some proposals are given on the study and development of marketing information resource of rail way passenger transport.
提出了对客运营销信息资源研究、开发的几点建议。
This paper presents the study and development of a high strength heat resistant aluminium alloy conductor for large span installation.
阐述了用于大跨越的高强度耐热铝合金导线的研究与试制。
A comprehensive review is given on the working principle of absorption and adsorption heat pumps, the study and development of their working pairs and cycles.
本文叙述了升温型吸收和吸附式热泵的工作原理，热泵工质对及热泵循环系统的研究与进展状况。
The high-performance electrode material of lithium ion battery has become one of the key technologies in the study and development of high performance lithium ion battery.
锂离子电池用高性能电极材料一直是锂离子电池开发研究的关键技术之一。
This paper summarized the study and development of applying electrochemical methods on wastewater treatment. Supply water treatment and recirculating cooling water treatment.
本文综述了电化学法应用于废水处理、给水处理、循环冷却水处理的研究进展。
Because of its steady performance, much more sources of raw material and low cost, the study and development of zinc air battery is always paid more attention.
锌空气电池由于性能稳定、比能量高、原材料来源广泛、成本低廉，故其开发研究一直深受重视。
Because of its steady performance, much more sources of raw material and low cost, the study and development of zinc-air battery are always paid more attention.
锌空气电池因其具有性能稳定、比能量高、放电电流大、原材料来源广泛、成本低廉等优点一直受到广泛重视。
Because of its steady performance, much more sources of raw material and low cost, the study and development of zinc - air battery are always paid more attention.
锌空气电池因其具有性能稳定、比能量高、放电电流大、原材料来源广泛、成本低廉等优点一直受到广泛重视。
The software test system is one of the most important supporting tools for supporting the study and development of the high-performance software of distributed avionics system.
为了支持研制和开发高性能的分布式航空电子软件系统，软件测试系统是必备的工具之一。
Upon these data, this paper states the viewpoints on the occurrence and water quality of the deep-seated groundwater, it aims to aid the study and development of these groundwater.
并结合这些资料对深层地下水的赋存及其水质谈了几点认识。旨在对研究和开发深层地下水能有所启迪。
The study and development of universal electronic control unit have practical significance to improve tests method and tests efficiency.
通用电控单元的研究与开发，对于完善电控发动机试验手段、提高试验效率具有重要的现实意义。
The study and development of healthy powder paint are described. Development paths of several kinds of healthy powder paints are illustrated.
阐述了如何研究和开发健康型粉末涂料，列举了几种健康型粉末涂料的开发途径。
The study and development of permanent hair dyeing, agent especially about the new harmless ones such as iron salt, plant extracting and Melanin hair dyeing agent are reviewed.
综述了永久性染发剂的研究开发，尤其新型无毒染发剂如铁盐染发剂，植物萃取物染发剂和黑色素类染发剂等。
The study and development of permanent hair dyeing, agent especially about the new harmless ones such as iron salt, plant extracting and Melanin hair dyeing agent are reviewed.
综述了永久性染发剂的研究开发，尤其新型无毒染发剂如铁盐染发剂，植物萃取物染发剂和黑色素类染发剂等。
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