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- The effect of pre oxidation of the Kovar alloy Fe Ni Co on the resulting glass Kovar seal has been studied using metallography, XRD and SEM. 采用金相、 XRD、 SEM观察分析了 Kovar合金 (铁镍钴合金 )氧化膜的连续性、厚度对封接件的透气率、抗拉强度的影响。
- The oxidation weight loss rate of binderless C/C composite prepared by in situ carbonization of pre oxidized fibres(PAN) was tested in the air,at 0.1 MPa,from 673 K to 973 K using thermo weight analysis method. 采用恒温热重法测定了在空气中 ;0 .;1 MPa、673 K到 973 K下预氧丝 (即预氧化聚丙烯腈纤维 )原位炭化无粘结剂 C/ C复合材料的氧化失重率 ;
- The pre oxidizing treatment could retard the nodular corrosion, but could not prevent the Zr4 tube from the nodular corrosion. 预生膜能起到延缓疖状腐蚀的作用,但不能阻止疗状腐蚀产生。
- Keywords sulphide ore;pre oxidation;glassing reagent;XRF; 硫化物矿;预氧化;玻璃化试剂;XRF;
- Some biological molecules have the form of a helix. 有些生物分子呈螺旋状。
- Keywords refractory gold concentrate;bacterial pre oxidation;ferrobacillus sulfooxidans; 难浸金精矿;细菌预氧化;氧化铁硫杆菌;
- The school has a large biological laboratory. 这所学校有一个很大的生物实验室。
- The convention bans the stockpiling of biological weapons. 该公约禁止储存生物武器。
- Cook the pie for 20 minutes in a pre heated oven. 在经过预热的烤箱里烘烤馅饼20分钟.
- The application of mathematical principles to biological processes. 生物数学应用于生物学过程的数学原理
- The pre - christmas period be always very busy . 圣诞节前这一段时间总是很繁忙的。
- Just pre the switch on your arm rest. 您按一下扶手上的那个开关就行了。
- Oxidation involves the transfer of electrons. 氧化过程涉及电子的转移。
- They are well pre pared and never improvise. 他们总是有备而来，从不临时草率从事。
- To transform a metal into a mineral by oxidation. 使矿化通过氧化使金属转化为一种无机物
- Q: Do you work well under stre or pre ure? 在压力下你能正常工作吗?
- The air outside pre ed the side in . 外面的空气将桶壁压得凹进去了。
- The biological study of bodies of water. 水生物学研究水体的生物学
- PRE>This text is underlined. 标签为括在该标签中的文本添加下划线。
- The NO oxidation is autocatalytic. no氧化是自动催化的。
