The gold, detached from the copper, forms a sediment at the bottom of the cell.

针脚里的铜溶解之后与金分离，金沉淀在电解池底部。

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Directions: Before use, please shake the bottle, so that sediment at the bottom is well-mixed with water.

使用方法：使用前请摇动瓶身，使瓶底沉淀物与水混合均匀。

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Placer tin deposit in xupu occurs in alluvial sediment of quatemary system and cassiterite chiefly concentrates at the bottom of gravel layers.

溆浦砂锡矿床赋存在第四系冲积层中锡石主要富集在底部砂砾石层。

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United Utilities said this was caused by harmless sediment which normally lies at the bottom of water pipes and which can get stirred up due to the changes in pressure when a main bursts.

BBC: People evacuated after pipe bursts in Huyton