热热热久久久免费视频|第四色五月婷婷五月天AV|日韩高清无码免费一级大片|日本成人手机在线视频|中文字幕无码Av在线|台湾a级别黄片免费看|欧美一级性爱亚洲第一性爱|A级黄色电影久草大|www.91精品视频|亚洲AV资源欧洲无码在线观

單詞乎

dissolved oxygen

dissolved oxygen是什么意思、dissolved oxygen怎么讀

dissolved oxygen漢語翻譯

【醫(yī)】 溶解氧

dissolved oxygen例句

  1. Having waters rich in mineral and organic nutrients that promote a proliferation of plant life, especially algae, which reduces the dissolved oxygen content and often causes the extinction of other organisms. Used of a lake or pond.
    (湖泊等)優(yōu)氧化的水中富有礦物有機物，有利于植物，特別是藻類的增殖，但藻類往往使分解的氧含量過低，從而使別的有機物滅絕。用于指湖泊或池塘
0
糾錯