基本释义
n.
坑口
相关例句
pithead
1.Conditions at the village contrasted sadly with the training centre. For a start, there were no pithead baths.
2.The computer program may assist decision-making in the way of helping decision-makers to select scientificaly the average grade of ore in pithead heap-leaching mining under a total cost.
3.The results of static evaluation show that ore mining fee is the main part and amortization of both building and equipment and major materials fee are the secondary parts in the total cost of pithead heap-leaching mining.
4.By analyzing the technical flow of pithead heap-leaching uranium deposits of hard-rock type, the authors analyze its 14 cost items such as ore mining fee and major materials fee etc., and set up a geological-economic evaluation model.
