| 释义 |
Ballast layer
基本例句
道砟层
Comparison of in-situ measured ground heat fluxes within a heterogeneous urban ballast layer在一个非均相城市道碴层现场测得的地面热通量的比较
In-situ Experiment on the Cooling Effect of Closed Ballast Layer on Permafrost on the Tibetan Plateau青藏高原封闭道碴层对下部多年冻土保护作用的现场实验研究 |