The preliminary study on the cement-based FGM indicates, the cement-based FGM have high theory study value and brilliant application prospect.
研究表明，水泥基梯度功能材料具有很高的理论研究价值和很好的应用前景。
In this paper, the preliminary study on prevention and control technique of forest rat harm in Saihanba Mechanised Tree farm and Yudaokou Ranch of northern of Hebei was made.
本文对河北省北部的塞罕坝机械林场和御道口牧场的森林鼠害防治技术进行了初步研究，包括杀鼠烟剂的筛选和中药提取物的筛选。
By using the methods of quantitative and qualitative analysis, the author makes the preliminary study on present structure of sports consumption motivation of university students in Sichuan.
运用定量与定性相结合的方法，对现阶段四川省高校学生体育消费动机结构进行初步探讨。
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