Copper-chromium Hydrogenation Catalyst 铜铬加氢催化剂
aluminum copper chromium 铜铬铝合金
aluminium-copper chromium [材] 铜铬铝合金
Chromium copper 铬铜合金 ; 铬铜
copper-chromium oxide 铜铬氧化物
copper chromium wastewater 铜铬电镀废水
The effects of catalyst preparation and hydrogenation conditions on the activity of copper-chromium oxide catalysts for selective hydrogenation of soybean oil was investigated.
通过铜铬氧化物催化剂用于豆油的选择氢化，研究了制备方法及氢化条件对催化剂活性的影响。
In this paper, the effect of cold-work and heat treatment on the properties of Copper-Chromium-Zirconium electrode alloy is dealt with, its optimum processing parameters established.
本文研究了热处理和冷变形对铜铬锆电极合金性能的影响，并确定了电极合金的工艺最佳参数。
Other important African export commodities are iron ore and timber, followed by manganese, cobalt, copper and chromium.
其他重要的非洲出口商品是铁矿石和木材，其次还有锰、钴、铜和铬。
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