facultative

英 [ˈfækəltətɪv]

美 [ˈfækəlˌteɪtɪv]

adj.  兼性（的）; 任意的，可选择的; 授权的；特许的

化学

COCA.40742

英英释义

adj

• not compulsory
  1. facultative courses in the sciences
• granting a privilege or permission or power to do or not do something
  1. a facultative enactment
• able to exist under more than one set of conditions
  1. a facultative parasite can exist as a parasite or a saprophyte
• of or relating to the mental faculties

双语例句

• Feasibility Study on Facultative Anaerobic Composting of Sewage Sludge in Dagang District Using for Green
  大港污水污泥兼性厌氧堆肥用于绿地的可行性研究
• Any direct business or facultative reinsurance business, being general business, in relation to which the risk is underwritten in Hong Kong, that is to say.
  任何属一般业务的直接业务或临时再保险业务，而所涉及的风险是在香港承保的，换言之。
• What is a facultative parasite?
  兼性寄生物是甚麽？
• There are two modes in the preceding process, which are facultative biochemical mode and biologic enhanced flocculation mode.
  前处理单元在两个模式，即兼性生化模式与生物强化絮凝模式之间转换。
• Heterotrophic bacteria producing acids is the dominant strain during facultative reaction.
  兼氧反应过程中的微生物以异养型的产酸细菌为优势菌种。
• Through Jia Bao-Yu's olfaction and gustation, his spiritual love and facultative desire was emphasized.
  通过賈宝玉的嗅觉与味觉，进入他的深层意識与美感触觉，突显他的精神戀爱与官能欲望。
• The facultative anaerobic hydrolysis technique is effective in treating nitrobenzene production wastewater.
  兼性厌氧水解工艺应用于该类生产废水是有效的。
• Experimental Studies on Pre-treatment of Urban Sewage by a Facultative Bioflocculation Reactor
  兼氧生物絮凝反应器预处理城镇污水的试验研究
• Facultative OXYGEN-CONTACT oxidizing process to the wastewater treatment of medical waste disposal
  兼氧-生物接触氧化法处理医疗废物处置废水变成废物，变成废弃不用
• Characteristic Analysis of Cooperation Hydrogen Production Using Rhodopseudomonas sp. DT and Enterobacter Aerogenes This method is effective to the facultative anaerobic bacteria or aerobic bacteria with hydrogenase.
  光合细菌与产气肠杆菌协同产氢特性分析这种方法对于用氢化酶的兼性厌氧细菌或需氧细菌是有效的。