Перегляд Mining of Mineral Deposits по назві
Зараз показуються 353-354 з 354
-
Variations of physico-mechanical, mineralogical and geochemical properties of marble under the influence of weathering
(National Mining University, 2019-03-30)Purpose. To investigate the physico-mechanical, mineralogical and geochemical properties variations of Igbeti marble, south-western Nigeria under the influence of weathering. Methods. About twenty representative samples ... -
Ways to improve safety of a pumping-circulatory system of a drilling rig
(National Mining University, 2018-09-30)Purpose. To modernize a pumping-circulatory system of a drilling rig in order to improve the environmental safety data, reliability, and convenience during oil well construction. Methods. Methods of system analysis of the ...