contact demolition

• 接触爆破

contact demolition的用法和样例：

例句

1. In complicated surrounding conditions, a five-storeyed building with hollow concrete-brick walls was successfully demolished by way of outside contact blasting.
   在复杂环境下，利用外部接触爆破成功地拆除一空心水泥砖承重墙结构的五层楼房。