保温壶的热量，被画成一圈橙色

Gouache product cutaway illustration of a dark blue insulated jug centered on ivory. A partial wall cutaway shows two shells, a narrow vacuum gap and inner liner; warm water is soft orange with a little steam above the opening. Conceptual construction visualization with no labels or dimensions.

水粉产品剖面插画，一只深蓝保温壶占画面中央，壶壁局部切开，显示双层壳体、窄小真空夹层和内胆；内部热水为柔和橙色，少量蒸汽从壶口升起。米白底，结构概念示意，不加标签或尺寸数字。