词汇	science of lubrication
释义	science of lubrication 润滑科学
随便看	economic repair life economic repelling economic report Economic Reporter Economic report of the President economic reprisal Economic requirement Economic Requirements economic research Economic Research Assistant economic research center economic research centre economic research council economic research method economic research methods economic research organization economic research service economic research think-tank economic residence development economic residue economic resistance of heat transfer economic resource economic resource conservation economic resources economic resources environment