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- catalyst grading technology 级配技术
- Through studying the technology of "S-RHT" catalysts grading combination, the most optimized solution is chosen. 同时,对“S-RHT”催化剂级配工艺进行了研究,从中选出最佳方案。
- Aspects of other a few mine because grade technology of low, exploitation cost of inconvenience of complex, traffic, investment did not extract loftily. 其他的一些矿点因品位低、开采技术复杂、交通不便、投资成本高尚未开采。
- Safety operation of transformer directed by color grade technology 利用色谱技术指导变压器安全运行
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- The technology of PP catalyst improves unceasingly. 聚丙烯的催化剂技术不断改进。
- He's not in the first grade as a musician. 他不是第一流的音乐家。
- Business is now on the up grade. 目前生意蒸蒸日上。
- Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
- The offer of a new job provided just the catalyst she needed. 这份新工作正是她所需要转变的契机。
- Technology is a booming sector of the economy. 技术是一个迅速发展的经济部门。
- The sixth grade saw an educational film yesterday. 六年级学生昨天看了一部教育片。
- He received a failing grade on the term paper. 他的期末报告不及格。
- The compact disc is a miracle of modern technology. 激光唱片是当代技术的奇葩。
- Red and yellow grade into orange. 红与黄混合成橘黄。
- The twins will enter the fourth grade this fall. 这对双胞胎今年秋季将升到四年级。
- Their marriage is on the down grade. 他们的婚姻关系每况愈下。
- The trial flight has made the grade. 试飞成功。
- The science and technology of space flight. 航天学，宇宙航行学研究宇宙飞行的科学及技术
- The naughty boy had to repeat the fifth grade. 这个顽皮的男孩不得不重读五年级。
