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experimental procedure
Library
This record does not specify a safe experimental procedure.
science
безопасная экспериментальная процедура
Способ проведения эксперимента, позволяющий избежать неоправданного риска.
Salt-Water Demonstration: Controlled Comparison
Independent supplied record for document-reading and the final task. Also available as PDF; the HTML and PDF are two access formats of one material.