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Metal concentrations (natural variables) were converted according to the following equation so that the coded concentrations (coded variables) had values of 1 and +1 at low and high levels, respectively.
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[¿¼ÑÐ] 284Çóµ÷¼Á +5 ÌìÏÂŸß 2026-02-28 5/250 2026-03-01 08:49 by ms629
[¿¼ÑÐ] 272Çóµ÷¼Á +4 ÌïÖÇÓÑ 2026-02-28 4/200 2026-03-01 06:43 by Áõ±ø
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[¿¼ÑÐ] 304Çóµ÷¼Á +3 52hz~~ 2026-02-28 5/250 2026-03-01 00:00 by 52hz~~
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[¿¼ÑÐ] 276Çóµ÷¼Á +3 ·lyh123 2026-02-28 4/200 2026-02-28 19:45 by ·lyh123
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