Mix immediately before application to ensure maximum concentration.
The Sun
His method, unorthodox as it was, required maximum concentration and effort.
Times, Sunday Times
These are the type of lapses that tend to happen when a team has begun to tire towards the end of a test that requires maximum concentration and physical effort.
Times, Sunday Times
As altitude increased, the concentration rapidly increased to the maximum concentration near the middle of the cloud.
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A few different organizations determined a maximum concentration sulfotep in the air.
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