消防员须身穿保护装置及正压呼吸设施.Firemen should wear proper protective equipment and positive pressure self - contained breathing apparatus.可以工作在正压或负压下, 简单的螺丝刀调节, 多种弹簧可选.They work under pressure or suction. Simple screwdriver adjustmen...
他接受放射治疗，副作用很大。He reacted very badly to the radiation therapy.卡拉汉假定化学元素放射电磁信号。Callahan posits that chemical elements radiate electromagnetic signals.对他的治疗是把手术、放射和药物治疗结合为一体。His treatment was a combination of surgery, radia...