氮转化 nitrogen transformation
氮转化 nitrogen transformation
相关考题:
硝化反应是()。 A、在厌氧条件下,氨态氮在硝化细菌的作用下转化为亚硝酸氮,然后亚硝酸氮在硝化菌的作用下,进一步转化为硝酸氮B、在厌氧条件下,氨态氮在亚硝化细菌的作用下转化为亚硝酸氮,然后亚硝酸氮在硝化菌的作用下,进一步转化为硝酸氮C、氨态氮在亚硝化细菌的作用下转化为硝酸氮,然后硝酸氮在硝化菌的作用下,进一步转化为亚硝酸氮D、氨态氮在亚硝化细菌的作用下转化为亚硝酸氮,然后亚硝酸氮在硝化菌的作用下,进一步转化为硝酸氮
It can be inferred from the passage that which of the following presents the greatest danger to diver?A) Pressurized helium.B) Nitrogen diffusion.C) Nitrogen bubbles.D) An air embolism.
单选题The three basic elements necessary for any fire are ().Aheat, gas, and flamesBfuel, heat, and oxygenCheat, nitrogen, and fuelDfuel oil, nitrogen, and oxygen
名词解释题氮转化 nitrogen transformation