成国栋解释说，建设过程中对青藏高原永冻层所造成的威胁比全球气候暖化大。
Guodong explains that the construction impact posed a greater threat to the plateau permafrost than global warming.
摘要青化砭油田上三叠统长2辫状河砂岩储集层物性主要受沉积相及成岩作用的控制。
The reservoir quality is strongly influenced by the depositional facies and diagenesis of the Chang 2 sandstones of braided river facies in Qinghuabian oil field.
满足这个弱条件的集合抽象被称成弱层化。
A set abstract satisfying this weaker condition is said to be weakly stratified.
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