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- The results show that rare earth modification and heat treatment all can improve eutectic carbide morphology and increase the impact toughness,and both compre hensive result is more noticeable. 研究了稀土变质与热处理对白口铸铁的共晶碳化物形貌及冲击韧度的影响。
- Rare Earth Modification and Mechanism of Cobalt Ferrite Ionic Mmagnetic 离子型钴铁氧体磁流体的稀土改性与机理研究
- Production of Low-Cr Hi-Hardness Wear Resistant White Cast Iron with Rare Earth Modification 用稀土变质低铬白口铸铁生产高硬度耐磨铸件
- Effect of Rare Earth Modification and Heat Treatment on Impact Fatigue Property of Wear Resistant White Cast Iron 稀土变质及热处理对耐磨铸铁冲击疲劳性能的影响
- Research on Rare Earth Modification and Cutting Mechanism of Die-Cast Magnesium Alloy AZ91 压铸镁合金AZ91的稀土改性及切削机理研究
- It was in the days when motorcars were rare. 那是在汽车还罕见的时代。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- rare - earth modification 稀土改性
- A top hat is a rare sight these days. 高顶大礼帽现在已不多见。
- I must admit I am very fond of collect rare book. 我得承认我很喜欢海内珍本。
- The attraction of the moon for the earth causes the tides. 月球对地球的吸引力造成潮汐。
- It's very rare for him to be so late. 他很少迟到。
- The earth is only a speck in the universe. 地球在宇宙中只不过是一个小点罢了。
- Red squirrels are now very rare in Britain. 红色的松鼠在英国已十分罕见了。
- The white-lipped deer are rare in this area. 白唇鹿在这个地区很罕见。
- How on earth do they manage to rob the bank? 他们到底怎么抢了银行的？
- These rare tigers are protected by special laws. 这些珍贵的老虎受到专门法律的保护。
- A number of satellites are now circling the earth. 一些人造卫星现在正环绕地球飞行。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- The machine cast up a big heap of earth. 机器卷起了一大堆泥土。
