垫板;底板
Traveling Salesman Problem, or TSP problem ( Travelling Salesman Problem ) is a well-known field of mathematics problems.
旅行商问题, 即TSP问题 ( TravellingSalesmanProblem ) 是数学领域中著名问题之一.
The rope is ravelling at its end.
绳子在一端开了.
the majority of subgrade subsidence, erosion, collapse, pumping, asphalt pavement ravelling, peeling, cracking and so on, are relevant to the erosion of surface water and underground water at varying degrees.
大多数路基沉陷、冲刷、坍塌、翻浆,沥青路面松散、剥落、龟裂、车辙等,都不同程度地与地表水和地下水的侵蚀有关。
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