small impurities 小杂质
Metallic catalysts are highly active, but they're difficult to remove once the reaction is done, leaving small impurities that can nonetheless interfere with a chip's performance.
金属催化剂是高活性的，但一旦它们发生了反应就很难分离出去，留下微小的杂质可能影响芯片的性能。
At the same time, form powerful, add water to flow in a small proportion of the impurities and foreign away, and overflow wash from export finished cleaning trough eduction, role.
同时加水，形成强大水流，及时将杂质及比重小的异物带走，并从溢出口洗槽排出，完成清洗作用。
Disclosed is a polycarbonate resin which contains an extremely small amount of volatile impurities such as phenol.
本发明提供一种例如苯酚等挥发性杂质的含量极少的聚碳酸酯树脂。
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