英語翻譯
This year,2006marks the30~（th）anniversary of the Tangshan earthquake and the 20~（th）anniversary of the Chemo by lnuclear disaster.The former is a natural disaster while the later in a sense belongs to a man made incident .However,some lesson can be drawn from both then.For instance ,sluggish response absence of professional relief equipments .chaotic dispatches and slow assistance etc could been seen during the disasters