现代的飞机都装有两个黑匣子?一个是声音记录器,用于记录飞行员的对话:另一个是飞行数据记录器,用于监控燃料余量、引擎噪音和其他有助于调查人员重现飞机失事时刻情景的操作功能。黑匣子被置于隔绝的容器之中,周围是0.25英寸厚的不锈钢,它可以经受住强大的撞击和2000华氏度的高温。
When in deep water, theyre also able to send signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say theyre still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one planes black boxes were never recovered.
如果沉人水中+即使在20000英尺的深处,黑匣子也依然能够发出信号。专家认为,2009年6月{日在巴西附近海域失事的法航447的黑匣子就落在了接近这一深度的水中。但是统计数字表明,该机上的黑匣子仍然有可髓被发现。在过去30年中,有近20架飞机坠A深海,仅有一架飞机的黑匣子没有找到。
CET4四级词汇:
withstand 经受;承受
comic 滑稽的;喜剧的
submarine 潜艇
discovery 发现
altitude 高度;高处
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