boron copper

基本解釋

The effect of copper on low boron low chromium nickel based brazing alloy was studied by experiments.
本文研究了銅對低硼、低鉻鎳基釬料工藝性能的影響。
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.
利用正交試驗方法，研究了鉬、硼、銅合金元素對高鉻鑄鐵鑄態(tài)力學(xué)性能的影響。
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.
研究結(jié)果表明：隨鉬及用含量增加，硬度升高，沖擊韌性和抗奇強(qiáng)度降低；而鋼對其性能影響不大。

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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