Automatic zeolite filling machine for vacuum system requirements calculate the vacuum chamber to the vacuum required to determine the ventilation rate select the appropriate equipment development for the vacuum pump .

针对分子筛灌装机的真空系统要求，计算真空室要求达到的 真空度，确定 抽 气速率，为设备开发选取合适的真空泵提供依据。

According to the differences of permeability layers the influences of flow vacuum and temperature of the main ventilation system are considered to analyze the aerodynamic characteristics of sintering process .

在仿真过程中，根据料层透气性的不同，综合考虑流量、 负压和温度等因素的影响，分析研究烧结过程中主 抽风系统的气动特性。

The Appliance of the Pipeline Vacuum Integration Intelligent Energy-Saving and Ventilation System on Telecom Basic Station

管道 负压 式一体化智能节能 通风系统在通信基站中的应用

Fast cylinder cooling by low vacuum compound ventilation for 200 MW power generators

200MW汽轮机组低 真空复合 通风快速冷却汽缸的实践

The extraction technology of astaxanthin by the vacuum cavitation method was discussed and the effects of extraction solvent solvent concentration extraction time and ventilation on extracting ratio of astaxanthin were analysed .

对 负压空化法提取虾青素的各项工艺条件进行了初步探讨，研究了负压空化法提取的溶剂、溶剂质量分数、时间、 通气 量对虾青素提取效果的影响。