不透性石墨
- na.impermeable graphite
- 网络impervious graphite
不透性石墨
不透性石墨
impervious graphite
impervious中文 ... asbestos cement 石棉水泥 impervious graphite 不透性石墨 cement—lined steel 钢衬水泥 ... ...
impermeable graphite
impermeable... ... impermeable confining bed 不透水隔层 impermeable graphite 不渗石墨,不透性石墨 impermeable layer 防 …