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- Low grade pyrolusite ore 低品位软锰矿
- A Research on Preparation of Manganous Salt with Low Grade Pyrolusite 利用贫软锰矿制备锰盐的研究
- A low number; a low grade of oil. 一个小的数; 低级油
- John is down on his teacher because she gave him a low grade. 约翰恨他的导师，因为她给他打了低分。
- My son mucked up the car engine by using cheap, low grade gasoline. 我的儿子使用便宜的低级汽油,汽车引擎损坏了。
- It's a mid scale and its ore belongs to low grade structural altereds tyle, limonite, pyrite are mainly gold carriers. 矿石以低品位构造蚀变岩型为主,褐铁矿、铁矿是主要的载金矿物。
- Low grades are getting Hellen down. 低分数使海伦闷闷不乐。
- Simultaneous acid leach of ZnS concertrata and Pyrolusite ore is used to obtain Zn and Mn Solution,leach rates of Zn and Mn are up to 97% and 95%. 将硫化锌精矿与软锰矿同时浸出;得到 Zn 和 Mn 溶液;锌和锰的浸出率分别97%25和95%25.
- He is a bit let down by the low grade he got. 这次成绩不好, 他有点气馁。
- Waste acid from a titan white plant was used directly to leach pyrolusite ore with addition of pyrite for making manganese sulphate. 利用钛白生产过程中产出的废酸为原料，以软锰矿、黄铁矿直接浸出制取硫酸锰产品。
- Low grades are get ting Helen down. 考分很低使海纶闷闷不乐。
- China's imports from India more Goa India from low grade iron ore, rather than high-grade iron ore. 中国从印度进口的更多的是产自印度Goa的品位较低的铁矿石，而不是高品位铁矿石。
- The research is useful exploration for similar low grade ore pre-processing of demestic dilution type mine. 该研究对我国类似资源贫化型矿山低品位矿石的预选是一个有益的探索。
- This thesis will discuss the extractable grade of low grade ore according the production state of Jintingling Mining CO,ltd. 就金亭岭矿业有限公司生产现状,对低品位矿石的可回收品位进行了探讨。
- Abstract： The preparation of manganese carbonate from the lean pyrolusite ore, by using plant dust and leaching method with sulphuric acid, was investigated.The raw material is soft mangnetic ferrite. 摘 要： 研究了以低品位软锰矿石为原料,配入植物粉料,用硫酸直接浸出软锰矿制备软磁铁氧体用碳酸锰的新工艺方法。
- The ore structure of Daling Mine is complex in Jilin Nickel Industry Corporation, it is typical low grade difficulty mining deposit. 吉林镍业公司大岭矿矿岩结构复杂，为典型的低品位难采矿床。
- The optimation of biooxidation pretreatment process of the flotation products of low grade hard to leach gold ore was made. 将低品位的难浸金矿先经浮选分离后,对不同浮选产品的细菌氧化预处理流程进行了优化。
- My son muck up the car engine by using cheap, low grade gasoline. 我的儿子使用便宜的低级汽油,汽车引擎损坏了。
- The teacher remonstrated with the boy about his low grades. 教师告诫男孩，说他的分数太低了。
- The teacher remonstrated with the boy about his low grade. 教师告诫男孩,说他的分数太低了。
