ruggedness s重现性
method ruggedness方法耐用性评价
ruggedness steepness险峻
ruggedness number崎岖数;粗度数
suspension ruggedness悬架刚度
dynamic ruggedness动态皮实性
ruggedness robustness坚固耐用坚固性;坚固耐用的鲁棒性;坚固性鲁棒性
ruggedness test耐久性试験
Terrain Ruggedness Index地形粗糙指数
同义词：huskinesstoughness
"the ruggedness of the mountains"
"the ruggedness of his exams caused half the class to fail"
同义词：hardness