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无油润滑往复活塞食用二氧化碳压缩机 技术条件
参考页数:
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纤维增强塑料风扇和鼓风机的标准规格
Standard Specification for Fiber-Reinforced Plastic Fans and Blowers
参考页数:5P.;A4
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纤维增强塑料风扇和鼓风机的标准规格
Standard Specification for Fiber-Reinforced Plastic Fans and Blowers
参考页数:5P.;A4
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工业风扇.标准化实验室条件下风扇声功率级的测定.第3部分:包络面法
Industrial fans - Determination of fan sound power levels under standardized laboratory conditions - Part 3: Enveloping surface methods
参考页数:21P.;A4
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