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1. The propeller type fan is a popular choice for outdoor activities.
螺旋桨式风扇是户外活动的一个受欢迎选择。
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2. The propeller type fan provides a cool breeze during summer.
螺旋桨式风扇在夏天提供了一阵凉爽的风。
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3. The propeller type fan is designed to be quiet and efficient.
螺旋桨式风扇设计得既安静又高效。