superficial charring

http://www... ... "初验"," Initial acceptance inspection" "表皮烧焦"," Superficial charring" "表示速度"," Schedule speed" ...

charring是什么意思... ... pile charring 土法炭化 superficial charring (一种木材防腐法) 表面炭化 charring reagent 炭化试剂 ...

... ) carburizing case hardening 渗碳表面强化 ) superficial charring 木料表面碳化 ) surface carbonization 表面碳化 ...