crest length

• 坝顶长度

crest length的用法和样例：

例句

1. It is a few projects of crest spillway of rock-fill dam at home and abroad at present.
   摘要目前国内外有关堆石坝坝顶溢洪道的工程实例较少，对其结构设计理论的研究也不多，仅有少量的实验。