thermal
adjective [ before noun ] physics, geology specialized uk/ˈθɜː.məl/ us/ˈθɝː.məl/
热的，热量的
connected with heat
thermal conductivity (= ability of a substance to carry heat) 导热系数
It was the Romans who first recognized the medicinal benefits of Hungary's thermal springs (= ones which produce hot water). 首先认识到匈牙利温泉的医疗效用的是罗马人。
thermal
noun uk/ˈθɜː.məl/ us/ˈθɝː.məl/
(HOT AIR)
[ C ] environment specialized上升热气流
a large column of hot air rising from the ground
(CLOTHES)
thermals[ plural ] 保暖内衣（thermal underwear 的非正式说法）
informal for thermal underwear