trass / træs /
💦中学词汇鳟鱼鳟鱼的种类
trass 的定义
n. 名词 noun- a light-colored type of volcanic tuff used in making water-resistant cement and mortar.
更多trass例句
- Sometimes a proportion of common sand mortar instead of lime is mixed with the trass.
- Trass, tras, n. a volcanic earth used as a hydraulic cement.
- After it has been quarried it is ground in mills, and used for cement stone under the name of trass.
- He wished that the Trass boy would talk forever about destiny.
- The Dutch are very attentive in ascertaining the quality of the trass before using it in building their dikes.