dewar flask meaning in English

迪华瓶
迪尤尔氏瓶, 真空瓶
杜瓦瓶
杜瓦真空瓶

Laboratory glass dewar flask
实验室玻璃杜瓦瓶
The evacuated tube is similar to a conventional dewar flask and consists of two borosilicate glass tubes , a glass with high chemical and thermal shock resistance . the outer side of the inner tube is coated with a sputtered solar selective surface
真空玻璃管和传统意义上的真空玻璃细颈瓶是相似的，它由两层高强度耐冲击性的高硼硅玻璃组成，内管外壁是磁控溅射选择性吸收涂层。