copper-free aluminum翻译成中文是什么意思?不含铜的铝合金?

copper-free aluminum翻译成中文是什么意思?不含铜的铝合金? aluminum,heavy duty copper 英语翻译1.Copper clad aluminum strip:Copper clad aluminum strips size 25(mm)3(mm).Outside copper layer with 0.25mm and inside is aluminum.Conductivity should be more than 100%We want 2000tons/year copper clad aluminum strip size 25mmX3mm.Kindly g copper 英语翻译ALUMINUM FREE ANODIZED REFLECTOR SHEET这里的free怎么翻译呢? 英语翻译1.ESM 3-Dallas—Shredded Copper/Precious MetalsShredded copper/precious metal bearing from an end of life electronic products (EOLEP) shredding operation,with the majority of iron and aluminum removed.Material may contain plastic.The siz 英语翻译Zurik SHREDDED NONFERROUS SENSOR SORTED SCRAP(predominantly stainless steel)Shall be made up of a combination of the nonferrous metals:stainless steel,insulated copper wire,aluminum,copper,lead,magnesium,nickel,tin,and zinc,in elemental o 英语翻译For field connections,use 11 AWG wires insulated for a minimum of 75 ℃Use aluminum or copper wireFactory address aluminum scarp spun aluminum Aluminum bracket 请问以下复合材料的化学俗名是怎么称呼的?Aluminum/Copper Metal Matrix Composite（Al77.9/SiC17.8/Cu3.3/Mg1.2/Mn0.4）Aluminum/Lithium Metal Matrix Composite（Al81/SiC15/Li2/Cu1.2/Mg0.8）Carbon-Carbon Composite （Carbon fiber - Car COPPER是什么意思 copper是什么意思 Nowhere in nature is aluminum found free,owing to its always __ with other elements,most commonly with oxygen.a.combinedb.being combined选哪个,为什么 英语翻译Aluminum alloy Track aluminum silicate是什么意思 aluminum nitrate是什么意思