boron copper

常见例句

The effect of copper on low boron low chromium nickel based brazing alloy was studied by experiments.
本文研究了铜对低硼、低铬镍基钎料工艺性能的影响。
The influence of molybdenum, boron and copper on the mechanical properties of as-cast high chromium cast iron has been studied with the help of orthogonal experiment.
利用正交试验方法，研究了钼、硼、铜合金元素对高铬铸铁铸态力学性能的影响。
It is showed that its hardness increases and its bending strength and impact toughness decreases with addition of molybdenum and boron, but copper has little influence on the mechanical properties.
研究结果表明：随钼及用含量增加，硬度升高，冲击韧性和抗奇强度降低；而钢对其性能影响不大。

For example, Turkish mining law is investment-friendly, as there is little bureaucratic control, an easy permitting process, and lower fees, and allows broader activities for companies involved in mining gold, copper and boron.
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