The method is phase shifting with four any steps in a facultative interval . and get the parameter in combining with grouping disposal 这种方法采用步距任意的四步步进移相，并结合分组处理方式来求得所需参数。
Facultative anaerobes , because of their indifference to the presence or absence of oxygen , exhibit growth throughout the medium 对于兼性厌氧菌来说，因为他们对于有或没有氧气都没有差别，因此在培养基中到处都有生长。
This paper fully expounds the mechanism of organic pollutant removal , the reasons for low energy consumption and the kinetics of facultative bio - reaction 摘要阐述了兼性生化去除有机污染物的机理、低能耗技术的依据与反应动力学以及城市污水兼性生化前处理工艺。
Based on the experiments , the appropriation and efficiency of the utilization of facultative bio - chemical technology for aquatic wastewater treatment and reuse are discussed 摘要在试验基础上，对利用激波传质兼性生化工艺处理水产品保鲜废水的可行性进行了系统的研究与论证。
Facultative describing an organism that can utilize certain conditions but is not dependent on them , e . g . an organism that can adopt an alternative mode of living 兼性：指某些生物有机体可以利用某种条件但不依赖于它们的生活方式，举例来说一种生物可以同时采用两种生活方式。
For this it is inconvenient or disadvantageous to exploitation and applications of bifidobacterium . utilizing the technology of protoplast fusion , facultative lactobacillus ' s aerotolerant gene was integrated 本实验以兼性厌氧乳杆菌作为遗传物质的供体，应用原生质体融合技术来改良双歧杆菌菌种厌氧特性。
Non - heading chinese cabbage ( brassica campestris l . ssp chinensis makino ) , a specific vegetable in china , plays important role in ensuring annual vegetable supplication . it is a facultative long - day plants 白菜是我国特有的一种蔬菜，在蔬菜的周年供应中起着重要的作用，是典型的低温长日照二年生植物。
The optimal technical parameters for urban wastewater treatment through facultative bio - reaction are got from the large amounts of tests , which provide the design methods and operation parameters for such kind of wastewater treatment 试验获得兼性生化的适宜工艺参数，为污水处理工程设计和运行提供了技术依据。
The facultative bio - reaction working as the first process in municipal wastewater treatment can decrease the burden of the latter ecological part with limited energy consumption , also can save lots of energy than conventional aerobic biological treatment 兼性生化前处理既为后续零能耗生态处理单元减轻负荷，也使工艺能耗比好氧工艺大幅度下降。
The utilization of c sources by a methanotrophic isolate from the soil was also detected . it was supposed that the facultative methanotrophs might be dominant for methane oxidation as methane released weakly in the greenhouse soil 此外，还研究了从土壤中分离的甲烷氧化菌对碳源的利用情况，表明在甲烷释放极少的设施栽培土壤中，兼性营养的甲烷氧化菌可能在甲烷氧化中占据主导地位。
