shì / gù / fā / shēng / hòu / zhuān / yè / rén / yuán / xùn / sù / gǎn / dào / xiàn / chǎng / zhǎn / kāi / fáng / huà / jiù / yuán事故发生后,专业人员迅速赶到现场展开防化救援。After the accident, specialists quickly arrived at the scene and began the antichemical rescue operation.