haulback

名词 n.
中文释义

英文释义

名词 n.
  1. A small wire rope or line used to pull the main cable (or butt-rigging) back into position after a log has been hauled out. countable
    — We ran 3,000 feet of haulback and got only thirty-five logs.
  2. A method of surface mining where overburden (the material on top of the coal or ore) is transported from an area and then hauled back after removal of ore or coal. uncountable
    — This includes mining systems R&D such as development of haulback techniques to redeposit overburden material in a beneficial sequence immediately behind the extraction operation to minimize costs and aesthetic and environmental damage.

词形变化

haulbacks plural
0 次浏览 数据来源: Wiktionary