Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
이 팽창계는 온도 변화에 따른 물질의 팽창을 측정합니다.I paengchang-gye-neun ondo byeonhwa-e ttareun muljil-ui paengchang-eul cheugjeonghamnida.This dilatometer measures the expansion of materials due to temperature changes.