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кривая равной освещённости stresses
gen.	isophot
amer., Makarov.	isoluxe line (изолюкса)
brit.	isoluxe curve (изолюкса)
el.	equiluminous curve
metrol.	isolux; isophot curve
opt., Makarov.	isophote
quant.el.	isophote curve
tech.	isolux curve; isolux line; equilux curve
кривая равных освещённостей
astr.	isophote