Horizontal Directional Drilling (HDD)

• 水平定向钻进（HDD）

Horizontal Directional Drilling (HDD)的用法和样例：

例句

1. With the rapid development of China's urbanization, horizontally directional HDD, as a new modern technique of HDD, has rapidly developed.
   水平定向钻进技术作为一种现代非开挖施工新技术，随着我国城市化进程的加快而快速发展。