Destroying the remaining stocks of variola is seen by some countries as the final chapter in eradicating the disease to prevent the risk of accidentalrelease.
一些国家认为，销毁剩余的天花病毒库存是消除这种疾病以防止意外释放危险的终章。
2
Prevent AccidentalRelease – Plug All Open-end Connections or Sample Draws Used Less Than Once Per Week.
用堵头堵住所有接头的开口端及使用频率少于一周次的取样点。
3
Such an increase can be of a meteorological origin and need not be due to an accidentalrelease of radioactive materials from the nuclear power stations.