要模仿自然生态环境，使鱼儿在其中生活得轻松愉快，没有环境对它们的压力，也没有生病和死亡的危险，让它们和我们一样，平静而幸福的生活。
然而鱼缸中的鱼粪却是个令人头疼的大问题，那么怎样才能有效地除去鱼缸中的鱼粪呢？
常用的方法有虹吸法，硝化细菌分解法，虹吸法是最简单的一种。
还有这些。。。。晚上交论文，急求英文翻译！！！谢谢！！！
第1个回答 2013-04-22
To mimic the natural ecological environment, make the fish in them a good life, no environmental pressure on them, also does not have the danger of illness and death, to make them like us, peaceful and happy life.
However the turners falls in the fish tank is a headache problem, so how to effectively remove the aquarium fish poop in it?
Commonly used method of siphonage, nitrifying bacteria decomposition method, siphonage is one of the most simple
However the turners falls in the fish tank is a headache problem, so how to effectively remove the aquarium fish poop in it?
Commonly used method of siphonage, nitrifying bacteria decomposition method, siphonage is one of the most simple
第2个回答 2013-04-15
To mimic the natural ecological environment, the fish in them to live happy, no pressure on them, there is no risk of illness and death, make them like us, peaceful and happy life. However, big fish in the aquarium dung is a headache, so how to effectively remove the aquarium fish feces? Commonly used methods of siphonage, nitrifying bacteria decomposition, siphon method is one of the most simple.
第3个回答 2013-04-24
这是生活的必然趋势 每个人都应该要向高出走的
第4个回答 2013-04-26
论文就这么少吗
第5个回答 2013-04-28
5486+236589+2
