English translation for "导洞（导坑）"

pilot tunnel

Related Translations:

导坑:  approach pitdrift headingpilot driftpilot holepilot tunnelpilottunnel

中央导坑:  centre drift

导坑尺寸:  size of heading

横导坑:  cross cut

隧道导坑:  heading pilot tunnel

导坑底板:  pilot tunnel floor

平行导坑:  parallel adit

下部导坑:  bottom drift

底导坑:  bottom gangwaybottom gatebottom heading

导坑法:  pilot tunnel methodpioneer drift method

Similar Words：

"导电作用" English translation, "导电阱" English translation, "导钉" English translation, "导钉牵引术" English translation, "导洞" English translation, "导洞法" English translation, "导洞掘进" English translation, "导洞掘进法" English translation, "导洞掘进工" English translation, "导洞开采" English translation