作者通过调查和研究，掌握了它的生态条件和生物学特性。
Through survey and study author have obtained many knowledges to control its biological character and its mode of life related to environments.
研究方法：在分析既有港口铁路规划基础上，参考其它项目规划成果，通过调查和系统研究，对港口铁路规划进行深入探讨。
Research methods: On basis of existing port rail planning and through survey and systematic study, this paper deeply discusses the plan of port railway.
通过调查和对比研究得出以下结论。
Through surveys and comparative studies, we have the following conclusions.
通过调查和科学研究可以预见，计算机应用测试（CT）总有一天会取代纸和笔的测试。
There is a vision supported by surveys and scientific research that one day Computerized testing (CT) will virtually replace paper and pencil testing.
通过调查和科学研究可以预见，计算机应用测试（CT）总有一天会取代纸和笔的测试。
There is a vision supported by surveys and scientific research that one day Computerized testing (CT) will virtually replace paper and pencil testing.
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