Ammonia when used as a refrigerant is valuable because of its high efficiency, it is however ().
Your tanker is designed to carry anhydrous ammonia in bulk.The keel was laid in 1980.Which statement concerning the carriage of this cargo is TRUE().
氨氧化细菌 ammonia-oxidizing bacteria
Ammonia when used as a refrigerant is valuable because of its high efficiency, it is however ().
发酵液的pH可以通过Cell、buffer、Ammonia water、urea、NaOH、HCl等来调节。