lethal致命的lethal malignant melanoma致死性恶性黑色素瘤lethal oxygen concentration半数致死量lethal conditions of pathogen病原体致死条件Lethality End Game Simulation杀伤力最终模拟演练Lethality and Target Hardening组分含量Lethal Rate of Particle Center粒子中心致命率Lethal Value of Particle Center粒子中心致命值lethal midline granuloma of nose鼻部致死性中线肉芽肿Lethal midline granuloma of face面部致死性中线肉芽肿Lethal multiple pterygium syndrome致死性多发性翼状胬肉综合征