Catalan ⇄ Arabic Basque Bulgarian Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hungarian Irish Italian Latvian Lithuanian Maltese Norwegian Bokmål Polish Portuguese Romanian Russian Slovak Slovene Spanish Swedish Turkish Ukrainian +

caldera form.
environ.	锅炉 一个封闭的容器，无论是热水或蒸汽都被循环加热，用来加热或产生动力。