corundumite
常见例句
- Thetesting results of changed performance of corundumite brick after immersed for a long time are put forward.The suggestions of existingproblem at present and the work from now on are put forward.
提供了剛玉甎等被水長時間浸泡後性能變化的檢測結果,竝對目前存在問題和今後工作提出了建議。 返回 corundumite