您要查找的是不是：
- 下测铀窄道Uduranium narrow channel in downward window (Ud)
- 上测铀窄道Uuuranium narrow channel in upward window (Uu)
- 下测铀宽道Udwuranium wide channel in downward window (Udw)
- 下lower
- 下一next
- 道method
- 一下(adj) one time; once
- 查找下一个find next
- 下的subaltern
- 窄narrow
- 下一个next
- 要使用这艘大船从岩石之间的一条窄道通过是需要高超技术的。It takes a lot of skill to sail a big ship through such a narrow passage between the rocks.
- 一道together
- 测井well logging
- 铀uranium(U)
- 下页overleaf
- 侦测sense
- 有道have attained the Way; be accomplished in the Way
- 下周next week
- 上下up and down
