Access to rough vacuum is the main one of vacuum equipment.
是获得粗真空的主要真空设备之一。
LS series wet roots vacuum pump is a rough vacuum pumping equipment.
LS型直排大气湿式罗茨真空泵属粗真空获得设备。
Used either solely as Rough Pumps, or in combination with other high vacuum pumps as Backing Pumps.
可单独作低真空泵用，也可与其他高真空泵组合作前级泵用；
Due to complexity and uncertainty of condenser fault diagnosis, a new method for fault diagnosis of condenser vacuum based on fuzzy rough set and case-based reasoning was presented.
针对凝汽器真空故障诊断的不确定性和复杂性，提出一种基于模糊粗糙集和事例推理的凝汽器故障诊断新方法。
The integrated Pirani vacuum sensor system in this work can be applied for the gas pressure detector in the medium and rough vacuum measurement.
本文研制的集成皮拉尼传感器系统能够作为气压检测器应用于中真空和粗真空的测量。
Is a rough vacuum, one of the major vacuum equipment.
是获得粗真空的主要真空设备之一。
With these results, comparison or rough estimation can be made for the coking tendencies in the thermal reaction systems of vacuum residua with different compositions and structures.
据此，可以比较或估量不同组成和结构的渣油热反应体系的生焦倾向的大小。
With these results, comparison or rough estimation can be made for the coking tendencies in the thermal reaction systems of vacuum residua with different compositions and structures.
据此，可以比较或估量不同组成和结构的渣油热反应体系的生焦倾向的大小。
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