facultative

基本解释

• adj.能力的；偶發的；任意的；許可的；[生]兼性寄生的

同根派生

• facultative相关词

英汉例句

雙語例句

• Secondary II is facultative, and is spread among many schools, depending of the Student"s interest.
  中級教育II是特許的，主要是根據學生的興趣而存在於許多學校中。
• This method is effective to the facultative anaerobic bacteria or aerobic bacteria with hydrogenase .
  這種方法對於用氫化酶的兼性厭氧細菌或需氧細菌是有傚的。
• Nitrate can be used by facultative organisms living under intermediate conditions referred to as anoxic.
  硝酸鹽能夠被生活在中等缺氧條件下稱爲兼性生物躰所利用。

權威例句

• Instead, it uses a stationary pump about the size of a lunchbox to inject active, or "vegetative, " bacteria—harmless strains of facultative anaerobes—into the drains of restaurants, meatpackers, hospitals and photo processing labs.
  FORBES: Germ warfare
• Instead, the company uses a stationary pump about the size of a lunchbox to inject active, or "vegetative, " bacteria-harmless strains of facultative anaerobes-into the drains of restaurants, meatpackers, hospitals and photo processing labs.
  FORBES: Germ Warfare

• facultative更多例句

词组短语

短語

• facultative anaerobe [微]兼性厭氧菌;嫌氣性細菌;兼性嫌氣生物
• facultative reinsurance [保險]臨時分保;[保險]臨時再保險;再保險;臨時分保臨時再保險
• facultative heterochromatin [細胞]兼性異染色質;異染色質;功能性異染色質;兼性異染色質
• facultative respiration 兼性呼吸
• Facultative anaerobes 兼性厭氧菌;兼性厭氧細菌;兼性嫌氣生物;兼性厭氧

• facultative更多词组

英英字典

柯林斯英英字典

• empowering but not compelling the doing of an act

• facultative剑桥字典
• facultative柯林斯字典

专业释义

環境科學技術

• 兼氧

  TA could be removed quickly from wastewater in aerobic condition, the removal rate of TA can be above 96% within 12~16h of HRT. By contrast, facultative system could only degraded 15.3% within 210h of HRT.
  堿減量印染廢水中的TA在好氧狀態下，屬於易降解有機物，HRT爲12～16h，去除率在96％以上；在兼氧狀態下，屬於難降解有機物，HRT210h，其去除率衹有η_(TA)15.3％。

• 兼性因素

生物學

• 兼生性
• 兼性的
• 兼性
• 容許的
• 可選擇性的

化學

• 兼性的