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- Spinnable mesophase pitch was prepared from catalytic cracking residue of petroleum and uniform mesophase pitch carbon fibre (MPPCF) was obtained. 以石油系催化裂化渣油为原料,调制出可纺性的中间相沥青,并纺出均匀的中间相沥青纤维。
- In this paper. the catalytic cracking residue of petroleum which was used to preparemesophase pitch was separated by wiped film evaporator first in our country. 本研究在国内首次采用刮膜蒸发法分离制备中间相沥青的原料-石油催化裂化渣油。
- Spinnable mesophase pitch was prepared ftom catalytic cracking residus of petroleum and uniform mesophase pitch carbon fibre (MPPCF) was obtained. 以石油系催化裂化渣油为原料,调制出可纺性的中间相沥青,并纺出均匀的中间相沥青纤维。
- Study on asphalt produced by coprocessing coal and catalytic cracking residue 煤油共处理生成沥青性质研究
- The group composition of oils produced by coprocessing of Yanzhou bituminous coal with catalytic cracking residues (CCR) was investigated by high performance liquid chromatography. 采用高效液相色谱法对兖州烟煤与催化裂化油浆共处理制备的油品的族组成进行了研究。
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- STUDY OF STEAM CRACKED RESIDUE AS MOTOR FUEL OIL 蒸汽裂解渣油用作发动机燃料油的研究
- The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
- The residue of estate belongs to his son. 剩余财产属于他的儿子。
- The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
- That was a cracking shot he played. 他这一下打得妙极了。
- You'll crack up if you go on working so hard. 你继续这样拚命干下去,身体会吃不消的。
- There's a lot to be done, so let's get cracking. 工作很多,咱们开始干吧。
- Police are cracking down on drug dealers. 警方现对贩毒分子严惩不贷。
- They sat by the fire, cracking jokes. 他们坐在火堆旁讲笑话。
- Have another crack at solving this puzzle. 再试一试把这个难题解决了吧。
- EFFECT OF THE REACTION TEMPERATURE ON THE ASPHALT PRODUCED BY COPROCESSING COAL AND CATALYTIC CRACKING RESIDUE 温度对催化裂化油浆与煤共处理沥青性质的影响
- She made a crack about his fatness. 她取笑他肥胖。
- There is a crack in this window. 这扇窗户上有个裂纹。
- The residue after an ore or other material has been washed. 洗后的渣矿物或其他物质洗后剩下的渣滓