• 吴玛悧
    树梅坑溪早餐会 #009:测水质讲解
    新北,台湾 | 2011 | 版权:吴玛悧

    李峑毅先生正在讲解水质检测的方法。

    WU Mali
    Breakfast at Plum Tree Creek (#009)
    New Taipei, Taiwan | 2011 | Copyright: Wu Mali
    Mr. Li is explaining the methods of water testing.