梯度管的英文

例句与用法

1. Plastics - methods for determining the density of non - cellular plastics - density gradient column method
   塑料.非泡沫塑料的密度测定方法.密度梯度管法
2. Plastics - methods for determining the density of non - cellular plastics - part 2 : density gradient column method
   塑料.非泡沫塑料的密度测定方法.第2部分:密度梯度管法