In the process of material in dump by L-SX-EW, leaching is the weakest link.

在浸出-萃取-电积工艺处理排土场物料过程中，浸出是最薄弱的一个环节。

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In this dissertation, a process of recovery zinc from low grade zinc oxide ore with HL - SX - EW was studied on the research of zinc solvent extraction.

论文研究了锌溶剂萃取工艺，提出了氧化锌矿渗滤浸出—萃取—电积工艺流程。

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For example, the early 1980s deployment of SX-EW technology hugely increased the amount of copper available to us.

FORBES: But Every Generation Does Indeed Exhaust Its Mineral Reserves

SX-EW opened up the entire planet to another wave of copper exploration.

FORBES: But Why Did Julian Simon Win The Paul Ehrlich Bet?

The story is SX-EW (solvent extraction and electro-winning).

FORBES: But Why Did Julian Simon Win The Paul Ehrlich Bet?