图示引起石棉肺的因素，长而薄的物质是石棉纤维。许多房子和办公室仍然使用含石棉的建筑材料构建,特别是用于绝缘，因此在对建筑物进行改造或重建时对石棉一定要引起注意。
This is the causative agent for asbestosis. This long, thin object is an asbestos fiber. Many houses and offices still contain building materials with asbestos, particularly insulation, so care must be taken when doing remodelling or reconstruction.
