1) long wall face intermission advance
长壁间隔式推进
1.
In order to study the failure mechanism of soil layer in long wall face intermission advance in shallow seam mining covered with sandy and soil,theoretical analysis and experiment research were carded out.
为了研究沙土基型地质条件下长壁间隔式推进保水开采,采用理论分析和实验研究。
2) time interval of advancement
推进的时间间隔
3) propeller blade spacing
推进器叶片间隔
4) outward longwall
前进式长壁开采
5) partition
[英][pɑ:'tɪʃn] [美][pɑr'tɪʃən]
隔壁;间隔;分隔间
补充资料：固液混合火箭推进剂(见火箭推进剂)
固液混合火箭推进剂(见火箭推进剂)
solid-liguid hybrid rocket propellant
guye hunhe huoiian tui)in)i固液混合火箭推进剂(s olid一Iiguid hy-brid rocket proPellant)见火箭推讲齐，}_
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条