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Bīstamo un mazbīstamo atkritumu izcel...
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Bīstamo un mazbīstamo atkritumu izcelsme un iedarbība pazemes ūdeņos
Secondary schoolSummaries, Notes9 -
Diēnu ogļūdeņraži - alkadiēni
Secondary schoolSummaries, Notes1 -
Ogļūdeņražu atvasinājumi jeb spirti
Secondary schoolSummaries, Notes6
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