通用橋式起重機(jī) 限界尺寸 Boundary dimensions of E.O.T.cranes

機(jī)動(dòng)工業(yè)車輛 控制符號(hào) Powered industrial trucks--Control symbols

渦輪分子泵性能測(cè)試方法 Methods of measurement of the performance characteristics of tubo-molecular pumps

往復(fù)活塞壓縮機(jī)機(jī)械振動(dòng)測(cè)量與評(píng)價(jià) Measurement and evluation of mechanical vibration of reciprocating piston compressors

 制冷劑編號(hào)表示方法 Number designation of refrigerants