facing sand

Northern China is facing another sand storm.

又一场沙尘暴来袭华北等地。

The reclamation sand can be directly used for facing sand.

获得的再生砂可直接用于面砂。

The effective coal dust content of molding sand should be determined according to the factors such as the quality of the coal dust, casting size and thickness, pouring temperature, facing sand or unit sand, and so on.

决定型砂中的有效煤粉含量应根据煤粉质量的优劣、铸件大小和厚薄、浇注温度、面砂或单一砂等因素。

The three aspects of sand-gravel pavement maintaining are facing maintaining, wearing course maintaining.

介绍了砂石路面养护的内容,即面层养护 、 磨耗层养护.

Finally, some comments on the safety of the facing gravel sand dam were presented.

文末就面板砂砾坝的有关安全技术提出了意见，这对未来的坝工将是有益的。

Application of Facing Sand within Graphite on Bronze Impeller Casting

含石墨面砂在青铜叶轮铸件生产中的应用