Based on the analysis of rotary valve feeding apparatus of defibrator,a design method about double rotary valve feeding device was obtained.
在分析现有热磨机回料装的基,出了双作用回料装的设计思路。
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This Demag crane comes equipped with four hoist winches, a boom derrick with two winches, a boom hoist a luffing jib with two winches and a slewing mechanism.
这台德马克配备了四卷扬、一带有卷扬的桅杆、一提装置、一带有卷扬的变幅副臂以及一回转构。
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