density gradient tube
常見例句
- The article discusses a new method for measuring the blending rabbit hair-wool blended yarn which has two or three components the method of density-gradient tube.
本文研究探討了一種新的測試二比例、三比例兔毛、羊毛混紡紗的纖維含量測試方法——即密度梯度管法。 返回 density gradient tube