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roots blower
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roots blower
Encyclopedia
工学
往复泵
释
roots blower
罗茨鼓风机
利用两个叶形转子在气缸内作相对运动来压缩和输送气体的回转压缩机。
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eastern purple coneflower
eastern quadrature
Eastern question
Eastern sect of Taoism
Eastern Standard Time
Eastern Time
Eastern Times
Eastern tombs of the Qing Dynasty
Eastern Wall
Eastern Well
Eastern Western Monthly Magazine
Eastern Women’s Kingdom
eastern woodlands native peoples
Eastern Wu Tombs at Echeng and Wuchang
Eastern Yugur language
Easter Rising
East-European aesthetics
East European Time
East Façade of the Louvre,Paris
East Garden by Yuan Jiang
east Greenland cold current
East Hebei Autonomous Government
East India Company's Press
East Indian pitcher-plant family
East-Indian Ridge
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