词汇	natural thickness
释义	natural thickness 自然厚度
随便看	productivity of scientist productivity of scientists productivity of shipping productivity of sinter productivity of site productivity of social labor productivity of the service sector productivity of the social labor productivity of the soil productivity of the workers productivity of tonnage productivity of transpiration productivity of trowelling productivity of waters productivityof word-formation productivity of workman productivity only productivity optimization Productivity,Organizational productivity-oriented investment productivity paradox productivity pattern Productivity peaked in January productivity performance productivity per worker