时间:2022-04-05 20:18:33
n.
【化学】铪。
a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
同义词:Hf, atomic number 72,
Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals.
Hafnium and hafnium alloy strip , sheet and plate
铪和铪合金带材,薄板和中厚板
Standard specification for niobium - hafnium alloy ingots
铌铪合金铸锭标准规范
Method for determination of hafnium in zirconium and zirconium alloys
锆及锆合金中铪的测定方法
Standard specification for niobium - hafnium alloy bar , rod , and wire
铌铪合金棒材杆材和线材标准规范
Etermination of zirconium hafnium content - xylenol orange photometric method
二甲酚橙光度法测定锆铪量
Nuclear grade hafnium oxide pellets
核纯级氧化铪丸
Standard specification for hafnium and hafnium alloy strip , sheet , and plate
铪及铪合金带材薄板和中厚板标准规范
Zirconium oxide - determination of hafnium oxide content - emission spectrophotometric method
氧化锆中氧化铪量的测定
Hafnium oxides - determination of manganese oxide content - potassium periodate photometric method
氧化锆中锰量的测定
Determination of zirconium and hafnium contents - x - ray fluorescence speotrometric method
射线荧光光谱法测定锆量和铪量