×
pillar drawing
meaning in Chinese
回采矿柱
Examples
Pillar drawing
in room - and - pillar mining at jinshan gold mine
金山金矿房柱法开采的矿柱回采
Related Words
pillar method
pillar stiffener
coral pillar
pillar operation
bringback pillar
built pillar
hollow pillar
sun pillar
granite pillar
draw pillars
pillar die set
pillar drain
pillar drift
pillar drill
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