直颈
- 网络Straight neck
直颈
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直颈双口卧式便携水样采集器
Horizontal Straight - Neck , Double-Bottle Mouth Portable Water Sampler
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设计了一种具有结构简便、操作方便、易于清洗和采样杆可续接的直颈双口卧式便携水样采集器。
A kind of horizontal straight - neck , double - bottle mouth portable water samplers was designed . It was simple in structure and operation , and was easy to clean and to continuously connect sampling staff .