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The batch of obsidian foam glass consists of obsidian tailing, cullent power and foaming agent.
黑曜岩泡沫玻璃配合料由黑曜岩废料、玻璃粉和发泡剂组成。
youdao
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The batch of obsidian foam glass consists of obsidian tailing, cullent power and foaming agent.
黑曜岩泡沫玻璃配合料由黑曜岩废料、玻璃粉和发泡剂组成。
youdao