半年前，我随专家工作组到北非联合共和国，帮助改进合成水及液氢生产系统。在一起严重的事故中，我头部受重伤，爆炸的碎片把我的头盖骨削去了一大片。经过七天七夜的抢救，我奇迹般地活了下来，医生为我装上了钛合金头盖骨。半个月后，我又能工作了。　　由于合成水系统受 Six months ago, I went to the United Republic of North Africa with an expert working group to help improve synthetic water and liquid hydrogen production systems. In a serious accident, my head was seriously injured. The fragments of the explosion cut a large slice of my skull. After seven days and seven nights of rescue, I lived miraculously. The doctors installed titanium alloy skulls for me. After half a month, I was able to work again. Due to the synthetic water system