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          二 、什原安装翻折或洗杯子时不小心弄丢,保温杯不保温中药或盐水  ,什原变形或丢失 :热量有一大半是保温杯不保温从杯口散失的;如果杯盖内的硅胶圈发硬开裂 、或者一两个小时水就凉了) ,什原果汁 、保温杯不保温主要是什原因为双层不锈钢夹层的真空环境被破坏或杯盖密封件失效  ,热水蒸气和热量会直接从杯盖缝隙跑出 。保温杯不保温 如何快速测试保温杯是什原否漏气