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constraint
something that restricts thought or action
contamination
Being made less clean by a germ or hazardous sub- stance / infection/ آلودگی ناپاکی
deplete
to greatly decrease the supply of a resource or material
dispose of
To throw away;to get rid of;to kill
elementally
in terms of elements; basically
emission
Sending out from a small space into the general environ- ment;a substance discharged into the air/ انتشار خروج
extinction
Complete disappearance;the end of existence/ انهدام انقراض
reservoir
a place where a liquid is collected and stored
shrink
to become reduced in size, amount, or value
stable
محکم ،پايا،پايدار،پابرجا،باثبات ،مداوم ،محک کردن ،ثابت کردن ،استوارشدن
adjust
To change;to get accustomed to something
arbitrary
chosen simply by whim or chance, not for any specific reason (adj.)
denominator
The number written below the line in a fraction; мат. знаменател
exponentially
аt a very fast rate
infinitesimal
immeasurably small