1) semi open covers
半开复盖
2) semi-open cover
半开覆盖
3) Su-open cover
su-开复盖
4) open covering
开复盖
5) r-WE open cover
r-WE开复盖
6) semi cover and avoidance properties
半覆盖避开性
1.
But they had less results about the cover and avoidance properties and semi cover and avoidance properties and the .
而从子群的半覆盖避开性，覆盖避开性来研究有限群幂零性的结论还很少，本文就此做了一些探讨。
补充资料：开复
1.收复(失地)。 2.清代指官吏被降革后恢复其原官或原衔。
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