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He pulled on a welder's helmet for protection. He packed it with powder, struck a match and ran like hell.
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论文显示，Silica 采用两类体素写入方式：一种是基于折射率各向异性的双折射体素，另一种是基于折射率变化的相位体素。
Source: Computational Materials Science, Volume 266
图⑧：山东招远市毕郭苹果批发市场，交易火爆。