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- A method for determination of acid soluble and total aluminium in low and middle alloy steel by AES was presented. 本文利用原子发射光谱法定量测定中低合金钢中的酸溶铝和全铝。
- Two methods for the determination of magnesium in rare earth-magnesium middle alloy by EDTA titrimetry,i.e.oxalic acid precipitation and ammonium hydroxide precipitation,were studied. 研究了分别采用草酸和氢氧化铵沉淀分离稀土镁中间合金中的稀土,EDTA络合滴定法快速测定电解稀土镁中间合金中镁的两种方法。
- Cu Ag alloy 铜锡合金
- Keywords Cu、Ag、Au catylysts;catalytic hydrogenation;acetylene;KBH_4; 铜、银、金催化剂;催化还原;乙炔;硼氢化钾;
- rare earth-magnesium middle alloy 稀土镁中间合金
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- Keywords coppery waste liquid chemically plating Cu Ag bimetallic powders full package structure; 关键词铜烂版废液;化学镀;铜-银双金属粉;覆结构;
- Heitai gold mine is a large altered mylonite gold deposit which was proved up in the middle of 1980's, with concomitance of Ag and Cu. 河台金矿为20世纪80年代中期探明的大型蚀变糜棱岩型金矿床,并伴生银与铜。
- FAAS is applied to the determination of Ag Fe Cu in lead ingots. 采用空气乙炔火焰原子吸收光谱法测定电解铅中银、、。
- I'm sick of being piggy in the middle all the time. 我腻烦了总是夹在争吵双方的中间。
- He planted roses in the middle of the garden. 他在花园中间种上玫瑰。
- He admires the chivalry of knights in Middle Ages. 他很佩服中世纪武士的侠义精神。
- It has its roots deep in the Middle Ages. 它起源于遥远的中世纪。
- My wheel twisted off in the middle of the car race. 我的车轮子在汽车比赛中途脱掉了。
- The activity interaction parameters between Ce and Sn or Me in Sn-Ce-Me ternary alloy systems(Me=Pb,Bi,Zn,Sb,Ag,Cu,Cd)are calculated and analyzed by means of Chou model. 采用周模型计算分析了Sn-Ce-Me(Me=Pb、Bi、Zn、Sb、Ag、Cu、Cd)三元合金系中,Ce与Sn以及Ce与Me之间的活度相互作用系数。
- We have studied botany in our middle school. 我们在中学的时候就学过植物学。
- Methods The isothermal age hardening behaviour of an experimental75wt% Au,16wt% Ag,9wt% Cu alloy was studied by means of hardness test, X ray diffraction study. 方法 采用硬度试验和X线衍射的研究手段 ,探讨含 75wt%25金 ,16wt%25银 ,9wt%25铜合金的等温时效硬化性能。
- There are 300 students or so in this middle school. 这所中学大约有300个学生。
- He was appointed the rector of the middle school. 他被任命为那所中学的校长。
- She has dropped out in the middle of the race. 她中途退出比赛。
