filtration spring

The technology study of processing bur fruit juice with the means of exudation;

应用渗出法加工刺梨汁工艺技术研究

The glass tubes in discarded computers and TVs contain much lead which is no less than that contained in lead-acid accumulator,however there is little study on exudation of Pb in cone-glass.

文章对显像管玻璃中Pb渗出机理分析并通过实验证明,用水、盐、酸和碱溶液处理显像管玻璃后,都会有铅渗出。