Sample applications measured orientation and acceleration, and interacted with the recording capabilities using the MediaRecorder class.

样例应用程序度量了方向和加速，以及使用 MediaRecorder 类与录制功能进行交互。

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In the constructor (see Listing 5), initialize the parent class using the $orientation (page orientation), $unit (measurement unit), and $format (page size) that were passed in.

在构造函数（请参考 清单 5）中，使用传入的 $orientation（页面方向）、$unit（计量单位）和 $format（页面大小）初始化父类。

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It is also one of the remarkable characteristics in English class teaching and one of the marks for the quality class teaching, which shows an orientation to improve the English teaching in China.

师生在课堂上都说英语，这已是英语课堂教学的显著特征和优秀课堂教学的重要标志之一，也是提高我国英语教学的方向。

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