It is proved that for a image subblock with a single straight edge, the DCT coefficient. energy compaction orientation and the spatial edge orientation are not always orthogonal.
通过理论推导及事例分析证得含平直单边缘图像子块，其DCT变换系数能量并不总是集中分布在与其空间边缘走向垂直的方向上。
It can be applied to not only common plane compaction but inclined plane compaction. Furthermore, its impact energy can be adjusted to adapt for different subgrade.
它不仅适用于普通的平面夯实，还可以应用于斜面夯实，夯击能量可调，能满足不同地基的夯实需求。
It has opened a new way to reduce production costs, save energy and time in a great number of constructions of airports, roads and dams which tequire soil compaction.
它为道路、机场和水坝等工程施工中大量压实工作的节能、省时和降低生产成本探索了一种新的途径。
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