This crescent-shaped ridge of sand dune in Oman was formed by strong trade winds that form a smooth hill facing the wind (left) and concave slipface on the back.

阿曼一座新月形的沙丘脊由强信风吹成，在迎风的方向（图左侧）形成一面平缓的凸破，在背风面形成凹坡。

youdao

The reclamation sand can be directly used for facing sand.

获得的再生砂可直接用于面砂。

youdao

How will the market of zircon sand go in 2011? What will downstream firms do to share material profits and avoid risks, facing the continuing sharp rise in the price?

2011年锆砂市场如何起落，面对锆英砂价格的持续大幅上涨，下游企业如何才能更多的分享原料上涨的收益及规避风险？

youdao

The same powdery sand also lines the northern beaches of the facing island, Haslewood.

BBC: Kayaking Australia��s Whitsunday Islands

Tom sits in a low chair, facing the water, his feet buried in the sand.

NEWYORKER: Brother on Sunday

Stonework on the building was damaged by a 1977 sand-blasting which, while it turned a black building white, also took off the limestone's protective facing, swiftly turning it grey again.

ECONOMIST: Conservation