It is shown from engineering practice that the deductive value of concrete strength has high accuracy by the rebound strength curve of this paper. 工程实践表明，利用本文方法建立的现场回弹测强曲线推定混凝土强度值的精度较高。
Starting from this premise, we can easily conceive a height map as a greyscale image, where the intensity of each pixel corresponds to a height. 在这个前提下，我们可以很容易的想到高度图就是一个灰度图，每个象素的强度值就为相应的高度值。
