The pot cover has applied double sealing.
锅盖采用双道密封。
Using advanced driving and sealing structure, make the transmission part and the pot clean and sanitation.
使用先进的传动与密封结构，使传动部分与锅内洁净、卫生。
In order to check the effects of pavement cracks sealing and pot holes mend, the pavement failure types are summarized. The reasons of the failure after cracks sealing and pot holes mend are analyzed.
为了检验沥青路面裂缝填封和坑槽修补的效果，对填封裂缝和修补坑槽较常出现的再破损形式进行了归纳，并深入地分析了已填封裂缝和已修补坑槽再次出现破损的原因。
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