This article gives a description of the application of situational teaching method in Chinese teaching by elaborating on introductory words and phrases in the text book "Essential Chinese".

本文以《基础汉语》为例，从导入语、讲解词语两个教学环节论述情景法在汉语教学中的运用。

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Based on expatiation upon the k, t indices calculating method in lots of current maneuvering ship text book, this article presents a new analysing method with curve simulating.

在阐述了现行《船舶操纵》教材中关于船舶操纵性指数(K, T)计算方法的基础之上，提出运用曲线拟合的分析方法。

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This paper puts forward an accurate method of calculating light maximum visible range and gives suggestion on compiling List of Light (Chinese edition) and navigational text-book.

此文对灯标最大可见距离提出了较为严密的计算方法，并对中版灯标表和海图编制以及航海学教材中的相关部分提出了修改建议。

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