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- Our country develops polyacrylonitrile (PAN) base carbon fiber (CF) already had 30 old histories, gained remarkable success. 我国研制聚丙烯腈（PAN）基碳纤维（CF）已有30多年的历史，取得了显著成绩。
- A new type offluidized preoxidation furnace was designed in this paper based on characteristics of PAN base carbon fiber production process. 根据PAN基碳纤维生产的特点,设计了一种新型流态化预氧化炉,并对其关键部件的特点与作用以及流态化粒子的选择作了系统描述。
- It is found that meso-pitch based carbon fiber can be made throughpyrolysis and further heat treatment of LDOHF. 三线芳烃经过加压炭化，然后进一步热处理，这是一条制备中间相沥青碳纤维的可行途径。
- Mesophase pitch based carbon fibres can have high thermal conductivity due to the highly extended graphitic crystalline structure along the fibre axis. 中间相沥青炭纤维由于其石墨晶体结构沿纤维轴高度择优取向,具有极高的热导率。
- The borosilicate glass to carbon/carbon composite based carbon material has the good protection function at the high temperature. 硼硅酸盐玻璃在高温下对炭材料以及炭／炭复合材料具有较好保护作用。
- Different rayon based carbon fiber precursors are studied by means of scanning electron microscope(SEM), Thermal Mechanical Tester and X-ray diffractometer. 用电镜、纤维热机械仪、X光仪对不同来源的粘胶基碳纤维原丝及其碳丝进行了观察和分析。
- This paper is mainly concentrated on the introduction to prepare PAN based carbon fibers and their special fabrication method from a melt spinning to prepare the precursor fibers. 笔者主要介绍了聚丙烯腈基碳纤维的制备工艺概况,特别介绍了熔融纺丝路线制备聚丙烯腈原丝的方法。
- Scanning tunneling microscope (STM) was used to characterize the surface topography of Polyacrylonitrile (PAN) based carbon fibers before and after electrochemical treatment. 用扫描隧道显微镜对经过电化学腐蚀前后的聚丙烯腈基碳纤维分别进行了观测分析，发现了一种有趣的螺旋结构。
- The runner was retired put out at first base. 跑垒者于第一垒上被刺杀出局。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- The falling coconut give him a terrific bang on the head. 那只掉下的椰子砰地击中他的脑袋。
- You cannot enter a military base without a permit. 无通行证者不得擅入军事基地。
- Her heavy industry rests on a broad and firm base. 它的重工业有广泛坚实的基础。
- The falling coconut gave him a terrific bang on the head. 那只掉下的椰子砰地击中他的脑袋。
- Pitch based activated carbon fibers (PACF) have been prepared by activating pitch based carbon fiber (PCF) with H 2O and CO 2 as activating agent and ammonium salt mixture as impregnant. 以沥青基炭纤维 (PCF)为原料 ,以H2 O、CO2 为活化剂 ,以氨盐混合液为浸渍剂 ,对不同活化条件制得的ACF进行了比较。
- He caught me off base with that question. 他的问题猝然把我给问倒了。
- Coconut fiber can be made into mats. 椰棕可以制成垫子。
- The bombers swooped on the air base. 轰炸机突袭空军基地。
- Many languages have Latin as their base. 许多语言都以拉丁语为基础。
- That accounts for the milk in the coconut. 原来如此。
