Validation to multi - regression model of limited sampling strategy by bootstrap method 法验证有限抽样法多元回归模型
Spatial variants and sampling strategies of soil properties for precision agriculture 精确农业田间土壤空间变异与采样方式研究
Biotechnology - modified organisms for application in the environment - guidance for the sampling strategies for deliberate releases of genetically modified plants 生物技术.环境中使用的改良有机物.遗传改良植物审慎发布用取样方法指南
Biotechnology . modified organisms for application in the environment . guidance for the sampling strategies for deliberate releases of genetically modified plants 生物技术.适合环境应用的改性有机体.基因改性植物慎重放行的抽样策略指南
Biotechnology - modified organisms for application in the environment - guidance for the sampling strategies for deliberate releases of genetically modified plants ; german version en 12305 : 1997 生物工艺学.环境条件下使用的变性有机体.有目的释放
Under the programme , fehd takes food samples at the import , wholesale and retail levels for microbiological and chemical testing . the sampling strategy is risk - based 食环署人员会在入口、批发和零售三个层面抽取不同种类的食物样本,进行微生物及化学测试。
Biotechnology - modified organisms for application in the environment - guidance for the sampling strategies for deliberate releases of genetically modified microorganisms , including viruses ; german version en 12686 : 1998 生物技术.使用环境中的变异有机物.有目的释放基因变
Biotechnology - modified organisms for application in the environment - guidance for the sampling strategies for deliberate releases of genetically modified micro - organisms , including viruses 生物技术.应用于环境的改良有机体.故意释放基因改良有机体包括病毒的取样战略指南
Blackwelder and elston ( 1985 ) compared three sampling strategies and suggested that the best was sampling from the sib pairs with both affected member 试验样本来源于三种类型的同胞对:两fweed硕士学住论文物一吸wster ’ sti旧is个均不生病,有且仅有一个生病,两个都生病。
Biotechnology . modified organisms for application in the environment . guidance for the sampling strategies for deliberate releases of genetically modified microorganisms , including viruses 生物技术.适合环境适应的改性有机体.包括病毒在内的遗传改性微生物的谨慎释放的取样方法指南