压缩率相同情况下，夹角对于底部接触宽度影响不大，但最大接触应力随着夹角的增大而减小；
The influence which the included angles on the contact width is not obvious under the same compression ratio, but the highest contact pressure decreases with the increase of the included angles.
冰川的向前移动，其底部与海洋接触处的融化，还有波浪和潮汐运动，导致冰块断裂，漂浮到海上。
The forward movement, the melting at the base of the glacier where it meets the ocean, and waves and tidal action cause blocks of ice to break off and float out to sea.
这种情况产生于非常冷的食物或者饮料接触到口的底部和产生一系列的反应。
The condition is caused by extremely cold foods or beverages that touch the roof of the mouth and set in motion a chain of events.
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