1) use of national railway
国铁利用
3) iron reutilization
铁再利用
1.
The results showed that senescence was accelerated and iron reutilization in roots was increased after application of exogenous ethylene to primary leaves, which lead to active Fe and Fe content of young leaves and its improvement of iron.
结果表明 ,在缺铁条件下 ,外源乙烯利处理玉米植株初生叶可促进初生叶衰老 ,提高初生叶中铁再利用率 ,改善新叶的铁营养状况 ,增加其中的活性铁与全铁含量 ;外源细胞分裂素处理新叶可促进新叶的生长发育 ,提高新叶中全铁及活性铁含量。
5) usage ratio of molten iron
铁液利用率
1.
The relationship between casting yield and effective rate of metal charge, usage ratio of molten iron, technology yield and pass rate of castings were surveyed.
阐述了铸件成品率与金属炉料有效率、铁液利用率、工艺出品率、铸件合格率四个比率的关系,指出了铸件成品率与铸造生产的全过程有关。
6) utilization factor of iron
铁心利用率
补充资料：钨铁电炉出铁(吉林铁合金厂)
钨铁电炉出铁(吉林铁合金厂)
吻 他排由帕中桩了士朴屏人乙曰“
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条