mindmap root((压力)) stress, strain are the most comprehensive terms and apply to a force tending to deform a body: the weight of the snow put ~ on the roof; bolts snapping under the tremendous ~ of the impact. pressure commonly applies to a stress characterized by a weighing down upon or a pushing against a surface: normal atmospheric ~. tension applies to either of two balancing forces causing or tending to cause elongation of an elastic body or to the stress resulting in the body: tested the ~ on the tightrope.