And in mid 1980s, more attention was paid to climatic changes, and as a result of that, the research range expanded, methods were improved, and dating techniques more precise.
80年代中期以后，研究的内容侧重气候变化，研究区域不断扩大，方法不断完善，测年手段更趋精确。
But there were many problems presented in the research range, content and way.
然而，就其研究范围、内容、方法等而言，尚存在许多问题。
The introduction mainly explains the aim, the methods, the research range and the relating works regarding this thesis.
引言主要阐明本文的研究范围、与本文相关的研究成果以及本文的研究方法和目的。
The introduction part summarizes on the definition of elopement and designates the research range on this elopement story.
绪论部分对私奔的内涵做了界定，划定了私奔故事的研究范围。
Risk in economics has a wide research range, but it has not yet attracted sufficient attention in the field of investigation.
风险在经济学中有着广泛的研究，而在侦查学领域尚未引起足够的重视。
Chapter one summed up research purpose, research meaning, basic research state, research way and research range mainly as the preamble.
第一章是作为序言，主要概述了研究目的、研究意义、基本研究状况、研究方式及研究范围。
Results showed that the general corrosion rate of steel was higher accompanied with different extent local corrosion under research range of parameters.
结果表明：在所研究的参数范围内，材料表现出较高的均匀腐蚀速率，且伴有不同程度的局部腐蚀。
The system is not only common but also stable and safe. The system is also suited to variant measurement on scientific research range for system engineering.
其研制周期短、通用性强、稳定可靠，适用于系统工程科研领域的各类测试。
Chapter 2 sets forth the basic concepts about border tourism, including its definition, characteristics and so on, and confirms the research range of the thesis.
第二部分阐述了关于边境旅游的基本问题，包括边境旅游的定义、性质内涵特点及我国边境旅游的开展意义等，并对边境旅游的范围进行了界定。
The NSF recently built the Poker Flat Research Range north of Fairbanks.
国家科学基金会最近又在费尔班克斯北部建立了波克尔台地研究靶场。
The NSF recently built the Poker Flat Research Range north of Fairbanks.
国家科学基金会最近又在费尔班克斯北部建立了波克尔台地研究靶场。
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