seam-sample of coal的意思|示意

美 / / 英 / /

煤的缝样


seam-sample of coal的网络常见释义

煤层煤样 ... 煤样 coal sample 煤层煤样 seam-sample of coal 分层煤样 stratified seam-sample of coal ...

seam-sample of coal相关短语

1、 workable seam-sample of coal 可采煤样

2、 stratified seam-sample of coal 分层煤样