1. Are the conflict rules facultative or mandatory for the judge and the person concerned? 冲突法对法官和当事人是任意性规范还是具有强制性的拘束力？
2. 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。
3. A facultative anaerobic bacillus strain ××—01 was isolated and selected from the cattle stomach which can produce exocellular cellulase. 从牛胃中分离筛选出一株兼性厌氧芽孢杆菌××—01，可产生分解纤维素的胞外酶。
英英解释
adj.
1. of or relating to the mental faculties
2. able to exist under more than one set of conditions
3. granting a privilege or permission or power to do or not do something
4. not compulsory
