material line meaning in Chinese

物质线

Experimental investigation of acoustic absorption of detonation by absorbing materials lining wall
爆轰波在阻尼管道中声吸收的实验研究
As long as production orders have not yet been released , processing operations and material lines can be changed
只要定单未被释放，您就可以更改加工工序和材料。
Following development of the new construction materials , the new technology is also used in ncp . for selecting the practical and economical method to protect the canal , the new protection methods such as chemical solid materials lining , buried membrane lining and plantation bank protection have been tested in the project
( 7 )随着新型建筑材料的发展，在北引渠道上积极探讨固化剂护坡、膜袋护坡和绿化植生带护坡等新技术，以便在试验的基础上确定经济实用的工程和生物护坡方案。