What non - routine samples are taken and what analyses are made on each of these samples . why 采集了哪些非常规样品?每个样品采取何种分析方法?原因是什么
2.
Water quality - guidance standard for the routine sampling and pretreatment of benthic diatoms from rivers 水质.河水中底栖硅藻类常规取样和预处理的指导性标准
3.
Water quality - guidance standard for the routine sampling and pretreatment of benthic diatoms from rivers 水质.河流中底栖硅藻的常规取样和预处理的指导性标准
4.
Water quality - guidance standard for the routine sampling and pretreatment of benthic diatoms from rivers ; german version en 13946 : 2003 水质.河床硅藻类常规取样和预处理的指导性标准
5.
The food and environment hygiene department ( fehd ) conducts routine sampling inspections of the food available for sale in hong kong . there is no separate figure showing the percentage of food items sampled which are not imported through local dealers 食物环境?生署(食环署)定期抽取在本港出售的食物样本,当中并没有个别数字显示所谓水货食品的比例。