thicknessn.厚度;浓度;层
thickness strip[机] 厚度泥片
thickness range板厚范围
thickness tester厚度测定器,测厚仪
thickness feeler千分垫,量隙规
thickness grader种子厚度分级机
thickness of fat猪背膘厚度
thickness sensor厚度传感器
thickness nozzle厚壁接管
thickness of ice冰层厚度
thickness change厚度变化率