Experimental Investigation of the Friction Characteristics of the Spherical Joint and Slipper Pair in Crankshaft Connecting-rod Hydraulic Motors是什么意思_Experimental Investigation of the Friction Characteristics of the Spherical Joint and Slipper Pair in Crankshaft Connecting-rod Hydraulic Motors在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句