perc.
(psychology) Excessive stress. / (physics) A four-dimensional equivalent of mechanical stress.
A grape variety from Piedmont, used to make a red wine. / The dry, slightly bitter wine made from this grape.
Abbreviation of perchloroethylene. / (music) Abbreviation of percussion.
plural of cow bite
技術者は空気中のテトラクロロエチレン濃度を測定し、その値が安全基準を超えていることを確認した。
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