鸟粪石

These results indicated that Mg2 and H3PO4 could accelerate the degradation of organic matter,and reduce the ammonia emission by struvite crystallization reaction.

说明通过添加Mg2和H3PO4，可以改变堆肥的理化性质，促进堆肥的降解和腐熟，并通过鸟粪石结晶反应将堆肥中的铵态氮固定下来，有效提高了堆肥的营养价值。

Using struvite sediment to remove the nitrogen in waste water has many advantages,such as high removal rate of nitrogen and reaction speed,small amount of sludge,reclaiming the ammonia nitrogen etc.

在废水处理中采用鸟粪石沉淀法脱氮，具有氨氮去除率高、反应速度快、污泥体积小的优点，同时可以回收氨氮。

Pet food manufacturers developed low ash and/or low magnesium foods in response to the theories that ash or magnesium were the cause of struvite crystals.

宠物食品制造商研制出灰分含量低及含镁量低的食物，以应对&灰分和镁是导致鸟粪石结晶&这一理论。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。