English translation for "底导坑"

bottom gangway
bottom gate
bottom heading

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

导坑法:  pilot tunnel methodpioneer drift method

勘探导坑:  exploration tunnel

Similar Words：

"底刀座" English translation, "底倒角" English translation, "底导板" English translation, "底导洞法" English translation, "底导轨" English translation, "底导炉" English translation, "底道坑" English translation, "底德拉大学" English translation, "底的" English translation, "底的, 基底的" English translation