There may still be some ignition or explosive powder left in them.

因为可能放过之后还是会有一些能够点燃或会爆炸的粉末存在。

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The method, equipment and mechanism of explosive compaction of metal powder are discussed, and the application to the synthesis of intermetallics and diamond are introduced.

本文讨论了金属粉末爆炸压制工艺方法、装置和机理，同时介绍了该工艺在金属化合物、金刚石等合成领域的应用。

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Steel-bonded cemented carbide powder processed by explosive compaction was successfully bonded to the surface of carbon steel through liquid phase sintering.

采用液相烧结法将爆炸压实后的钢结硬质合金粉末复合在碳钢表面，成功获得覆层材料。

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Investigators determined the explosives used were crudely made bombs, built into pressure cookers using black powder explosive and made more lethal by using nails and pellets, a lawmaker said.

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The bombs appeared to have been built by packing the pressure cookers with a black powder explosive as well as nails and pellets to maximize casualties, a lawmaker briefed by investigators said.

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The rest is likely to be less-explosive powder intended to produce color effects.

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