我们需要降低燃料的闪点。
闪点越低，燃料越易燃，引发火灾的危险性也就越大。[{'character': '闪', 'pinyin': 'shan2', 'highest pitch': 10.71, 'lowest pitch': 8.19, 'duration': 0.33, 'prosody hierarchy': 'null'}, {'character': '点', 'pinyin': 'dian3', 'highest pitch': 10.27, 'lowest pitch': 6.2, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '越', 'pinyin': 've4', 'highest pitch': 10.49, 'lowest pitch': 6.89, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '低', 'pinyin': 'di1', 'highest pitch': 10.16, 'lowest pitch': 9.56, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.18}, {'character': '燃', 'pinyin': 'ran2', 'highest pitch': 8.97, 'lowest pitch': 7.21, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '料', 'pinyin': 'liao4', 'highest pitch': 9.64, 'lowest pitch': 7.97, 'duration': 0.29, 'prosody hierarchy': '#2'}, {'character': '越', 'pinyin': 've4', 'highest pitch': 10.49, 'lowest pitch': 8.56, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '易', 'pinyin': 'i4', 'highest pitch': 9.46, 'lowest pitch': 7.26, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '燃', 'pinyin': 'ran2', 'highest pitch': 8.97, 'lowest pitch': 5.72, 'duration': 0.34, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.31}, {'character': '引', 'pinyin': 'in3', 'highest pitch': 8.06, 'lowest pitch': 6.15, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '发', 'pinyin': 'fa1', 'highest pitch': 8.93, 'lowest pitch': 6.15, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '火', 'pinyin': 'huo3', 'highest pitch': 8.84, 'lowest pitch': 5.52, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '灾', 'pinyin': 'zai1', 'highest pitch': 7.99, 'lowest pitch': 5.52, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 8.37, 'lowest pitch': 7.47, 'duration': 0.08, 'prosody hierarchy': '#1'}, {'character': '危', 'pinyin': 'uei1', 'highest pitch': 10.43, 'lowest pitch': 7.75, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '险', 'pinyin': 'xian3', 'highest pitch': 10.15, 'lowest pitch': 5.36, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '性', 'pinyin': 'xing4', 'highest pitch': 8.42, 'lowest pitch': 5.7, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.1}, {'character': '也', 'pinyin': 'ie3', 'highest pitch': 7.84, 'lowest pitch': 5.71, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '就', 'pinyin': 'jiou5', 'highest pitch': 8.49, 'lowest pitch': 5.71, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '越', 'pinyin': 've4', 'highest pitch': 10.49, 'lowest pitch': 8.4, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 10.57, 'lowest pitch': 7.4, 'duration': 0.27, 'prosody hierarchy': '#4'}]