| 1 | A number of explosion crater tests on ice-rich frozen soil were carried out along Qinghai - Tibet railway. | |
| 2 | The part area adopts heat-bar treatment measure, to ensure permafrost areas iron tower foundations stability of Nachitai-Wudaoliang-Tuotuohe transmission line engineering. | |
| 3 | 鉴于目前对位于青藏高原上的沱沱河盆地研究不多，作者试用碳氧同位素比值的方法研究该地区新生代的始新世到中中新世这一时段内的气候环境变化情况。 In fact, the Tuotuo River basin has been researched little, so the authors try to study its climate change from Eocene to Miocene by carbon and oxygen isotopes. |
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