Ramsey’s Riddles is a column paying tribute to ISEE’s past president,Date Ramsey.They are brain-teasers for veteran blast technicians needing a refresher and apprentice blasting technicians for study before attempting blasting certifications.We would like to thank the reviewers of this column Brad Brown and Marcos Rene von Mengden.
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机译：Ramsey的Riddles是一项向Iisee的过去的总统致敬的专栏，日期Ramsey。他们是在尝试爆破认证之前用于学习的退伍军人爆炸技术人员的脑卒中脑卒中。我们要感谢审查者Brad Brown的审阅者Brad Brown 和Marcos Rene Von Mengden。
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