Filling in each cell takes constant time - just a bounded number of additions and comparisons - and you must fill in mn cells.
填充每个单元格需要的时间是恒定的—只需有限数量的相加和比较—必须填充mn个单元格。
2
Saline Halos are often formed in the soil containing Fe and Mn oxides and organic material by a concealed sulfide ore body under the action of the ground water.
隐伏硫化物矿体在地下水的作用下，在其覆盖层浅部含铁锰氧化物和有机质的土壤中形成盐晕。
3
This paper describes the Mn production and puts forward a new method to mine low-grade rhodochrosite using solving and soaking. The experimental results are presented in the paper.