起重机如何运转？
在起重机的帮助下，工人们正用凿岩机将其凿断。[{'character': '在', 'pinyin': 'zai4', 'highest pitch': 10.38, 'lowest pitch': 9.21, 'duration': 0.3, 'prosody hierarchy': '#2'}, {'character': '起', 'pinyin': 'qi3', 'highest pitch': 9.21, 'lowest pitch': 5.85, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '重', 'pinyin': 'zhong4', 'highest pitch': 9.11, 'lowest pitch': 8.39, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '机', 'pinyin': 'ji1', 'highest pitch': 10.65, 'lowest pitch': 8.39, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 10.4, 'lowest pitch': 7.92, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '帮', 'pinyin': 'bang1', 'highest pitch': 8.34, 'lowest pitch': 7.87, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '助', 'pinyin': 'zhu4', 'highest pitch': 8.22, 'lowest pitch': 6.76, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 6.76, 'lowest pitch': 5.18, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.25}, {'character': '工', 'pinyin': 'gong1', 'highest pitch': 11.42, 'lowest pitch': 10.3, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '人', 'pinyin': 'ren5', 'highest pitch': 11.28, 'lowest pitch': 8.3, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '们', 'pinyin': 'men5', 'highest pitch': 8.3, 'lowest pitch': 6.94, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '正', 'pinyin': 'zheng4', 'highest pitch': 9.06, 'lowest pitch': 7.91, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '用', 'pinyin': 'iong4', 'highest pitch': 7.91, 'lowest pitch': 6.84, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '凿', 'pinyin': 'zao2', 'highest pitch': 10.18, 'lowest pitch': 6.37, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '岩', 'pinyin': 'ian2', 'highest pitch': 10.18, 'lowest pitch': 7.4, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '机', 'pinyin': 'ji1', 'highest pitch': 10.65, 'lowest pitch': 8.13, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '将', 'pinyin': 'jiang1', 'highest pitch': 8.92, 'lowest pitch': 7.59, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '其', 'pinyin': 'qi2', 'highest pitch': 7.92, 'lowest pitch': 6.04, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '凿', 'pinyin': 'zao2', 'highest pitch': 10.18, 'lowest pitch': 5.12, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '断', 'pinyin': 'duan4', 'highest pitch': 7.92, 'lowest pitch': 6.4, 'duration': 0.23, 'prosody hierarchy': '#4'}]