The hollow hexagonal floor block with saw powder and shavings is suitable for fitting of ground in the room.

空式六角型锯沫刨花地板块适用于装修室内地面，美化室内与家庭、改善人们室内生活环境。

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This article introduces a method using the waste thermoplastic plastics and saw powder to produce fire - resistant dec-orarive construction material.

本文介绍了一种综合利用废旧热塑性塑料和锯末粉通过加入阻燃剂改性 ，生产防火阻燃型建筑装饰材料的方法。

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But then I saw that he had a bit of black powder on his fingertip.

不过，接着我就看见他指尖上有一撮黑色粉末。

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Armstrong began to describe what he saw: "The surface appears to be very, very fine grain,like a powder.

VOA: special.2009.07.15

"As soon as I saw the video of the explosion, I said that looks just like black powder, " Mr. Conkling said.

WSJ: Boston Bombing Suspects Roused by Jihadist Thought