ReadWriteQuiz
Chinese dictionary
- 1
n.rockshaft; wellhole; pit shaft
- 2
n.well shaft; tube shaped-space from the mouth to the bottom of a well
实现了立井井筒连续优质快速施工。
It implemented continuous high-quality and high-speed construction of vertical shaft.
实现了立井井筒连续优质快速施工。
It implemented continuous high-quality and high-speed construction of vertical shaft.