Geothermal gradient地温坡降
3)Temperature decreasing绿地降温
4)terrestrial heat and temperature lowering地热及降温
1.The environmental problems such as ground stress,rock explosion and earthshake,terrestrial heat and temperature lowering,prediction of conflagration etc.文中对深部开采的环境问题，诸如地应力、岩爆与地震、地热及降温、火灾预测等问题作初步探讨。
5)oil and gas pipeline temperature drop油气管道温降
6)calculation on heat drop in pass道次温降计算
延伸阅读
地道地道 解剖名。亦称阴道、中黄门、子肠等 。出《素问 ·上古天真论》。即女子阴道。《素问·上古天真论》：“七七任脉虚，太冲脉衰少，天癸 竭，地道不通，故形坏而无子也。”详见阴道条。
