1. 药碾子的近义词
1. 这是一项很笨重的工作，所用的工具有铁锤、药碾子、100孔/厘米2金属筛，全是手工操作，用了两个多月才完成。 This is real hard work and it took more than 2 months to finish with tools such as iron hammer, manpower abrader and 100 hole/ cm2 metal screens.