low-vacuum unloading gear 低真空卸负荷装置
vacuum unloading system 真空卸料系统
Vacuum-unloading 卸真空
vacuum unloading and trip gear 真空下降卸载及脱扣装置
vacuum-operated unloading device 凝汽器真空监视器
vacuum-type unloading pump 真空式卸鱼泵
Field application shows that an immersible pump method is the most ideal method for the oil vacuum unloading system of rail tank wag.
实践表明，卸槽潜油泵法是火车槽车负压卸油系统改造的最理想方法。
In the unloading process of light oil of tank car, the auxiliary unloading system of light oil pump controlling room is used to substitute the current vacuum unloading system.
在铁路轻油罐车装卸工艺中，采用轻油泵房辅助卸油装置可以替代现有泵房工艺流程中的真空系统。
The process of Vacuum loading and unloading is summarized, with reliable and practical standard of Vacuum unload given, based on the analysis and validation of the actual example.
总结该实验段真空-堆载联合预压的加载过程及卸真空计划，提出科学而实用的真空卸载标准。
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