Preparation of high strength concrete with stone sand (stone screenings) and the application of the stone sand in the PHC pipe pile production are presented.

介绍了用人工砂(包括石屑)试配高强混凝土以及人工砂在预应力高强混凝土管桩生产中应用的情况。

youdao

He cried, "Help!" The taller boy asked him, "After I hurt you, you wrote it in the sand, but now you carved it on a stone."

他喊道：“救命啊！”个子高的男孩问他：“我伤了你之后，你把它写在沙子上，现在却把它刻在石头上。”

youdao

A stone in the sand in the setting sun could be very beautiful, they said.

他们说，沙漠中的石头在夕阳映照下可能非常美丽。

youdao

Portland cement is a material that holds together the sand and crushed stone in concrete.

VOA: special.2009.12.01

The reality is those suppliers of sand, stone, concrete and road materials will not get their money.

BBC: Building site

Ms. HARRELL-MILLER: Like breaking stone, like breaking sand.

NPR: Searching for Roots at Genealogy Day Camp

For humans are merely one form among many, which the world produces over and over again, not only in everything that lives but also in everything that does not live, drawn in sand, stone, and water.

NEWYORKER: Total Recall