sampling unit的用法和样例：
例句
- Special care must be taken to ensure that no contamination of the sample occurs from sampling devices and storage containers.
特别注意的是从取样装置到保存容器必须确保样品不受污染。 - Whenever the entity under sampling is required to help forward any sample, it shall offer assistance.
需要被抽样单位协助寄送样品的，被抽样单位应当协助。
