毒品和恐怖行为是当今世界的两大难题。为此,国际社会花费了大量的资金和宝贵的时间以保障安全,但仍难免出现重大事故。如何尽量降低费用并减少事故是国际社会关注的课题。耶路撒冷一家公司(Erej Forrnsic)研究了一种技术,可以检测出百万分之一克的毒品和炸药。其做法是将敏感化学剂浸渍过的纸条贴到受检物的表面,然后喷上试剂,如果确 Drugs and terrorism are two major problems in today's world. To this end, the international community has spent a lot of money and precious time to ensure security, but it is still inevitable that a major accident will occur. How to minimize costs and reduce accidents is a topic of concern to the international community. A company in Jerusalem (Erej Forrnsic) studied a technique that can detect millions of grams of drugs and explosives. The practice is to sensitive chemical impregnated paper affixed to the surface of the test object, and then spray on the reagent, if indeed