carbon-dioxide arc welding是什么意思

用法例句

Preparation and characterization of silver nanoparticles-silica composite grain by sol-gel technology;

纳米银粒子-二氧化硅复合颗粒溶胶-凝胶的制备与表征

Microporous Silica Hollow Nanospheres Templated by Anionic Polypeptide;

以阴离子多肽为模板合成二氧化硅纳米空心球(英文)

Preparation of Sulfated Zirconia/Silica Complex Nanofibers by Electrospinning Method;

静电纺丝法制备硫酸化的二氧化锆/二氧化硅复合纤维

Study on the Allocation of Allowance for SO_2 Emission Trading Program In Taiyuan;

太原市二氧化硫排污权交易配额分配方法研究

Analysis on Treatment of Agglomeration Flue Gas's SO_2 Pollution in PanZhiHua Steel;

治理攀钢烧结烟气二氧化硫污染的对策分析

Research on the 11th Five-Year Plan for SO_2 Pollution Control of Existing Coal-Fired Power Plants;

现有燃煤电厂二氧化硫治理“十一五”规划研究

Study on hydrolysis parameters of titanium dioxide prepared from Ti-containing blast-furnace slag;

含钛高炉渣制二氧化钛水解参数研究

Research progress on surface modification and application of nano-sized titanium dioxide;

纳米二氧化钛表面改性与应用研究进展

Study on polyaniline-modified supported nano-titanium dioxide;

聚苯胺改性负载型纳米二氧化钛的研究

Study on Modification of TiO2Nano-material;

纳米二氧化钛材料的改性研究

Experimental Study on the Control of TiO2 Nano-Powder Crystal Phases Prepared by the Hydrolysis-Sediment Approach;

纳米二氧化钛粉体晶相控制实验研究

Two kinds of nano TiO2 sols A and B were respectively prepared with precursor titanium tetrachloride at low temperature in different mediums of nitric acid and hydrogen peroxide.

以四氯化钛为原料,分别以硝酸和过氧化氢为介质在低温下制备了两种二氧化钛溶胶A和B,通过X-射线衍射、透射电子显微镜、紫外-可见吸收光谱等测试手段进行了表征。