groundn.地面；地方；根据；主题；立场；水平；背景v.使停飞；困在家中；放在地上；使 ... 搁浅；打基础动词grind的过去式和过去分词形式ground rentn.地租

1. In the cloudless night ground temperature decreases on account of the heat lost to the space.
   在无云夜间地面温度由于其热量散失到空间而下降。
2. From inclusion and Ro data, it is clear that Pingbei strata had undergone a higher temperature gradient in geological history, which is favorable for source rock evolution.
   从包体测温和镜质体反演资料推测平北工区经历了高于今地温梯度的热历史，这对平湖组烃源岩或深部烃源岩演化有利。