It used for casting sand , asbestos heat preservation materials , spheral metallurgy bond 用于铸造型砂石棉保温材料球团冶金粘结剂桩基工程钻井泥浆。
2.
It used for casting sand , asbestos heat preservation materials , spheral metallurgy bond 用于铸造型砂、石棉保温材料、球团冶金粘结剂;桩基工程、钻井泥浆。
3.
During the heating process the fibers of rare earth oxide break and become the spheral particles progressively 在热处理过程中,纤维状稀土氧化物颗粒断裂,并逐步聚集成短棒状或球状。
4.
The tem micrographs of composite powders indicated that the size of particles after electroless plating increased from 10 ~ 20nm to 50 ~ 60nm and the originally granular form changed into spheral - like shape 透射电镜观察表明,粉体颗粒镀覆后粒径由10 20nm增加到50 60nm ,颗粒外观由棱角状变成近似球形,镀覆均匀性较好。
5.
The observation by hrtem indicated that the size of particles coated with ultrasonic radiation at room temperature in alkaline formaldehyde bath was about 50 ~ 60nm . the originally granular form of the nano - al2o3 particles has changed into spheral - like shape . the x - ray analysis showed that the plate was the alloy of co - p 对镀覆后镀液成分的分析表明,反应自发停止的原因是主要由于镀液ph值过低,不能提供反应所需要的足够oh ~ - ,同时也使甲醛还原能力下降所致。
6.
The sucking mouse brain were inoculated with mdj - 01 strain to make electron microscopic examination , results showed that the virus was a spheral particle with membran which had a diameter of about 40 nm . by indirect fluorescent antibody test mdj - 01 strain was identified with tbev . a part of region encoding e protein was expanded by rt - pcr and sequenced . the nucleotide sequences of two strain viruses were compared with sequences in genbankjsequence homology analyses revealed mdj - 01 strain and senzhang strain had the highest homology with tbev oshima5 - 10 , respectively , which were 95 % , 94 % . mdj - 01 strain was identified with tbev again 应用间接免疫荧光试验进行血清学鉴定,结果表明mdj - 01株为tbev 。通过rt - pcr技术扩增部分e蛋白序列并测序,在genbank上进行同源性比较,发现mdj - 01株和森张株与tbevoshima5 - 10株的同源性最高,分别为94 、 95 ,从分子生物学水平上进一步证明mdj - 01株病毒为tbev 。在鉴定的基础上,本实验对两株病毒进行了核苷酸全序列测定。