那么这些麦秆可能是怎么进入墓葬的呢？
考古人员分析，这些麦秆是用来充当铺盖墓葬的填充物的。[{'character': '考', 'pinyin': 'kao2', 'highest pitch': 10.76, 'lowest pitch': 9.41, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '古', 'pinyin': 'gu3', 'highest pitch': 10.81, 'lowest pitch': 8.63, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 8.63, 'lowest pitch': 6.9, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '员', 'pinyin': 'van2', 'highest pitch': 7.67, 'lowest pitch': 6.73, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '分', 'pinyin': 'fen1', 'highest pitch': 8.98, 'lowest pitch': 7.07, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '析', 'pinyin': 'xi1', 'highest pitch': 9.0, 'lowest pitch': 8.48, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.32}, {'character': '这', 'pinyin': 'zhe4', 'highest pitch': 11.04, 'lowest pitch': 10.28, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '些', 'pinyin': 'xie1', 'highest pitch': 10.73, 'lowest pitch': 10.28, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '麦', 'pinyin': 'mai4', 'highest pitch': 11.07, 'lowest pitch': 8.09, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '秆', 'pinyin': 'gan3', 'highest pitch': 8.09, 'lowest pitch': 3.63, 'duration': 0.29, 'prosody hierarchy': '#2'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 8.56, 'lowest pitch': 8.37, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '用', 'pinyin': 'iong4', 'highest pitch': 8.37, 'lowest pitch': 6.73, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '来', 'pinyin': 'lai2', 'highest pitch': 6.73, 'lowest pitch': 5.75, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '充', 'pinyin': 'chong1', 'highest pitch': 9.24, 'lowest pitch': 6.49, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '当', 'pinyin': 'dang1', 'highest pitch': 9.15, 'lowest pitch': 8.55, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'character': '铺', 'pinyin': 'pu1', 'highest pitch': 10.52, 'lowest pitch': 9.7, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '盖', 'pinyin': 'gai4', 'highest pitch': 10.68, 'lowest pitch': 8.65, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '墓', 'pinyin': 'mu4', 'highest pitch': 10.49, 'lowest pitch': 8.68, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '葬', 'pinyin': 'zang4', 'highest pitch': 10.6, 'lowest pitch': 7.22, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.61, 'lowest pitch': 6.33, 'duration': 0.15, 'prosody hierarchy': '#2'}, {'character': '填', 'pinyin': 'tian2', 'highest pitch': 7.92, 'lowest pitch': 6.22, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '充', 'pinyin': 'chong1', 'highest pitch': 9.24, 'lowest pitch': 7.24, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '物', 'pinyin': 'u4', 'highest pitch': 9.23, 'lowest pitch': 6.46, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.61, 'lowest pitch': 4.61, 'duration': 0.2, 'prosody hierarchy': '#4'}]