A device made of plexiglass is added between the gas absorption tube and gas flowmeter in the atmospheric sampler. 在大气采样器上加装防止倒吸装置，可防止吸收液倒吸进入流量计。
On Friday, U.S. officials said an air sampling after North Korea's claimed nuclear test detected radioactive debris consistent with an atomic explosion. 周五美国官员们说，北朝鲜宣称的核试验之后得到的大气采样侦测到了与核爆吻合的放射性残留物。
