双盖
shuāng gài
- Double cover;double-canopy
双盖-
保冷保温效果佳，360度出水口，双杯盖设计，附背带舒适手把，外形新颖，色彩亮丽，贴心设计，居家旅游携带方便。
For cold heat preservation effect , 360 degrees outlet , double lid design with straps comfortable in hand , the contour novel , the color bright , intimate design , reside the tourism carrying convenient .
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双锥平衡密封盖在装酸槽车上的应用
An Application of the Bipyramid Balance Seal Cover in the Acid-containing Trailer