Portable hand-held dissolved oxygen meter designed to provide measurements for the most critical water quality parameter.

便携式手持溶解氧仪设计提供了最重要的水质参数的测量。

youdao

Portable hand-held dissolved oxygen meter designed to provide measurements for the most critical water quality parameter.

便携式手持溶解氧仪设计提供了最重要的水质参数的测量。

youdao