impaction

impaction

[im'pækʃən]

n. 装紧, 压紧

例句与用法：

These bullets fragment on impact.

这些子弹射中物体时爆炸成碎片。

The plane flew into a mountain and disintegrated on impact.

飞机冲向一座山，撞得粉碎。

The front of the car crumpled on impact.

汽车的前部被撞扁了。

A barrier that protects a harbor or shore from the full impact of waves.

防波堤，防浪墙保护一个港口或海岸以防波浪冲击的障碍物

It's difficult to assess the impact of the President's speech.

总统讲话的巨大影响很难估计。

词形变化：

名词: impaction | 动词过去式: impacted | 动词过去分词: impacted | 动词现在分词: impacting | 动词第三人称单数: impacts |

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n.

装紧; 压紧