cover hole

英 美
  • 超前探水钻孔
  • cover n.封面；盖子；套子；表面v.覆盖；涉及；包含；掩护；给…保险
  • hole n.洞；孔；穴；漏洞；困境v.挖洞；掘坑；进洞

相关词汇

covering cover covering by subgroups cover up the mistakes covering uniformities cover the shortage of Cover-free Families covering homomorphism coverless transformer covering of the seeds covering rate testing covered pulse jamming
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