哇，那为什么漏斗状云柱内的气压会变得很低呢？
由于漏斗状云柱内气压很低，产生强大的吮吸作用。[{'character': '由', 'pinyin': 'iou2', 'highest pitch': 9.65, 'lowest pitch': 8.41, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '于', 'pinyin': 'v2', 'highest pitch': 9.58, 'lowest pitch': 7.93, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '漏', 'pinyin': 'lou4', 'highest pitch': 11.45, 'lowest pitch': 8.29, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '斗', 'pinyin': 'dou3', 'highest pitch': 8.29, 'lowest pitch': 6.34, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '状', 'pinyin': 'zhuang4', 'highest pitch': 8.8, 'lowest pitch': 6.58, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '云', 'pinyin': 'vn2', 'highest pitch': 7.93, 'lowest pitch': 6.48, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '柱', 'pinyin': 'zhu4', 'highest pitch': 9.42, 'lowest pitch': 7.73, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '内', 'pinyin': 'nei4', 'highest pitch': 7.73, 'lowest pitch': 6.36, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '气', 'pinyin': 'qi4', 'highest pitch': 9.62, 'lowest pitch': 9.1, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '压', 'pinyin': 'ia1', 'highest pitch': 10.2, 'lowest pitch': 9.1, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '很', 'pinyin': 'hen3', 'highest pitch': 8.35, 'lowest pitch': 5.21, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '低', 'pinyin': 'di1', 'highest pitch': 9.22, 'lowest pitch': 8.3, 'duration': 0.24, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.28}, {'character': '产', 'pinyin': 'chan3', 'highest pitch': 6.72, 'lowest pitch': 6.22, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '生', 'pinyin': 'sheng1', 'highest pitch': 9.24, 'lowest pitch': 6.72, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '强', 'pinyin': 'qiang2', 'highest pitch': 8.87, 'lowest pitch': 6.3, 'duration': 0.3, 'prosody hierarchy': 'null'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 10.49, 'lowest pitch': 8.87, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 8.14, 'lowest pitch': 7.07, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '吮', 'pinyin': 'shuen3', 'highest pitch': 7.66, 'lowest pitch': 4.94, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '吸', 'pinyin': 'xi1', 'highest pitch': 10.21, 'lowest pitch': 5.11, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '作', 'pinyin': 'zuo4', 'highest pitch': 10.7, 'lowest pitch': 8.33, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '用', 'pinyin': 'iong5', 'highest pitch': 8.33, 'lowest pitch': 5.21, 'duration': 0.27, 'prosody hierarchy': '#4'}]