It is grouped with the world's most lethal potential biological weapons agents, sharing "select agent" status with the pathogens that cause smallpox, anthrax and plague.

它被归类于世界上最致命的药剂，可作为生物武器使用。并和能够导致天花、炭疽病和瘟疫的病毒同属“管制品”。

youdao

Lethal chemical Agent Countermeasures reviews some of the measures taken to defend against chemical attack.

致死性化学毒剂对策，综述了防御化学袭击的措施。

youdao

Itai Brun, the head of research and analysis in Israeli military intelligence, that the lethal nerve agent sarin was probably used.

NPR: Israel Fears End To 40-Year Peace On Syrian Front

There is no verification system known today or in prospect that will be able unfailingly to detect lethal chemical agent production and storage.

CENTERFORSECURITYPOLICY: Center for Security Policy | Submitted Testimony Of Frank J. Gaffney, Jr. Before A Joint Hearing Of The Senate Governmental Affairs Committee And The Permanent Subcommittee On Investigations

According to intelligence-based reports in the mid-1990s, Syria had accumulated hundreds of tonnes of skin-blistering mustard gas and sarin, a lethal nerve agent.

ECONOMIST: Syria and its chemical weapons