Stage B is "the first volcanic activity and biological hazard";
阶段为第一次火山活动和生物灾难事件；
The latent hazard includes biological hazard, chemical hazard and physical hazard.
潜在危害包括生物性、化学性和物理性；
Durability of wood and wood-based product. Definitions of hazard classes of biological attack. Part 2: application to solid wood.
木材和木基制品耐久性。生物侵蚀危害等级的定义。第2部分：实心木材应用。
Atmospheric pollution will have a major environmental hazard on the human body, other biological, utensils, and even the whole world.
大气环境化学污染对人体、其他生物、器物，乃至全球环境都有严重的危害。
HACCP is a kind of control system; the preventive harm is a kind of food for protection against biological, chemical and physical hazard management tools.
HACCP是一种控制危害的预防性体系，是一种用于保护食品防止生物、化学、物理危害的管理工具。
HACCP is a kind of control system; the preventive harm is a kind of food for protection against biological, chemical and physical hazard management tools.
HACCP是一种控制危害的预防性体系，是一种用于保护食品防止生物、化学、物理危害的管理工具。
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