搜索结果: 1-1 共查到“Mining machinery industry”相关记录1条 . 查询时间(0.078 秒)
Mining machinery industry:labor productivity trends, 1972-84
Mining machinery industry labor productivity trends
2009/5/19
The average annual rate of productivity growth in this industry was substantially below that for all manufacturing; the industry has felt the effects of falling coal prices and fuel shortage over the ...