The aerobic zone and anoxic zone coexisted in a floe, so nitrification and denitrification took place simultaneously at low DO.
低溶解氧下的同步硝化反硝化发生的机理应归结于微环境理论。
参考来源 - 短程硝化—反硝化生物脱氮与反硝化聚磷基础研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Do not be deceived by claims on food labels like "light" or "low fat."
不要被食品标签上像“少脂”或“低脂”的字样误导。
These snails do not occur on low-lying coral islands.
这些蜗牛不会出现在低洼的珊瑚岛上。
When you buy high and sell low, it's really hard to generate returns, even if you do it with great enthusiasm.
当你高价买入低价卖出时,即使你带着极大的热情做它,也很难产生收益的。
In addition,some low-income areas do not have enough supermarkets where people can buy fresh and healthy foods.
VOA: special.2010.06.07
What I'm going to ask you to do Andrew Low is to help me develop ways to improve the Andrew Low course.
你们的任务就是,探索改进,课程的新方法。
So do you think noble gases would have a high positive electron affinity, a low positive, or negative electron affinity?
那么,你认为稀有气体的电子亲和能,应该是一个高的正值,一个低的正值,还是一个负值?
应用推荐