| 释义 |
D form
基本例句
微小型菌落,侏儒型菌落
It is discovered by test that micro RE can promote formation of austenite in cast iron withD formgraphite, which can strengthen the cast iron matrix.通过试验研究,发现微量稀土能促进D型石墨铸铁中初晶奥氏体骨架的生长,对强化基体组织有一定的作用。H. pylori infection only appears in types B, C andD formof gastic pit, with the positive rates of 29. 0% , 66. 7% and 33. 3% , with type C significantly higher than that of type B and D、66 |