synthetic technological condition

technological condition

technological condition for preparation

technological condition fur fermentation

technological condition of milling

special mining condition

absorbing boundary condition anisotropic absorbing boundary condition

full-mechanized caving mining with large mining he

Full-mechanized Caving Mining with Large Mining Height

fully mechanized caving mining face with extra long mining length

fully mechanized mining with great mining height

mining damage due to mining

mining hight fully mechanized mining

transition from open cast mining to underground mining

underground Mining and Open Pit Mining

a national medium- to long-range program for scientific and technological development

adjustment of technological parameters

Agricultural scientific and technological achievem

Agricultural scientific and technological innovati

agricultural scientific and technological progress