double-bucket elevator 双斗提升机
double bucket-wheels 双斗轮混匀取料机
double-bucket weigher [计量] 双斗秤
double bucket wheel reclaimer 双斗轮取料机
Double Token Bucket 双令牌桶
double-door drop-bottom bucket 对开底卸料斗
double acting bucket 双动式铲斗
Feeding mechanism: bucket hoisting and manual double bell jar feeding mechanism is adopted which is easy to operate and can prevent gas leakage efficiently.
加煤机构：采用斗提卷扬机构，手动双钟罩加煤装置，操作简便、能有效防止煤气泄漏。
Feeding mechanism: bucket hoisting and manual double bell jar feeding mechanism is adopted, which is easy to operate and can prevent gas leakage efficiently.
加煤机构：采用斗提卷扬机构，手动双钟罩加煤装置，操作简便、能有效防止煤气泄漏。
A new energy dissipator-double curved differential dentated-extraordinary-shaped bucket was provided, and its effect of energy dissipation is good.
提出了一种新型消能工—双曲差动异型鼻坎，该鼻坎有良好的消能效果。
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