Teenage students using a laptop interfaced sensor to test stream water for chemical indicators of quality, such as chlorine, nitrates, phosphates, pH, iron, etc. The site is Ringwood State Park in northern New Jersey.

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Creative#:

TOP22291258

Source:

達志影像

Authorization Type:

RM

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須由TPG 完整授權

Model Release:

Yes

Property Release:

No

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No

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