In an area where low temperatures are limiting to life, the importance of the additional heat near the surface is crucial.
在这样低温限制了生存的区域，近地表的额外热量至关重要。
2
Cement concrete pavement, however damaged, broken boards, cracks, surface loss occurred from time to time, thus limiting its highway projects on a wide range of applications.
然而水泥混凝土路面破损、断板、裂缝、表面脱落现象时有发生，从而限制了其在公路工程上的广泛应用。
3
This method overcome the problems of many supposition conditions in theory and difficulty in searching critical slip surface in 3D limiting equilibrium analysis;