For here we can see that, rare-earth additive can remove harmful substances in liquid Cu effectively so that conductivity of non-oxygen copper pole is enhanced.
至此我们可以看出，稀土添加剂可以有效消除液态铜里的有害物质，所以提高了非氧化铜电极的导电率。
There's a copper hoop on top with wooden pole, and under stalk there's an iron mortise .
上端有铜抱箍与木杆联为一个整体，刃茎下部上一铁铆， 不存在折断问题，更长的关刀尚如此。
The shielding layer is a copper film provided with adhesives on one side, and is connected with the negative pole of the transducer.
所述的屏蔽层为一边带粘接剂的铜膜与换能器负极连接。
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