沉淀物，在化学上指从溶液中析出固体物质的过程；也指在沉淀过程中析出的固体物质。事实上沉淀多为难溶物（20°C时溶解度<0.01g）。在化学实验和生产中广泛应用沉淀方法进行物质的分离。
关键词 沉淀物；微合金化；热影响粗晶区（CGHAZ）；水下焊接 [gap=631]Key words precipitate; microalloyed; coarse-grained heat-affected zone(CGHAZ); underwater welding ...
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Changing welding conditions had great effect on the precipitate behaviors such as dissolution, reprecipitation, and coarsening.
不同的焊接条件对沉淀物的行为有很大影响。
参考来源 - 管线钢水下焊接粗晶区沉淀物和韧性的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
许多在海里死亡的生物很快便被沉淀物掩埋。
Many organisms that die in the sea are soon buried by sediment.
潜泳的时候，不要碰珊瑚礁或者搅动沉淀物，因为这样做可能会破坏珊瑚脆弱的生态系统。
When snorkeling, do not touch the coral or stir up sediment, as these actions can damage the reef's fragile ecosystem.
结果表明 SRS-82 株的无细胞提取液和其培养上清液的离心沉淀物皆具有致白血病活性。
The results showed that both the cell-free extract and culture supernate from mouse SRS-82 cell line were leukemogenic.
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