2. Are the pipes of the sprinkler system in the basement or on the mezzanine floor? 能告诉我喷水系统的管子是在地下室还是在夹层楼面吗?
3. The dynamic sprinkler developed by Masteel tech-center can satisfy the requirement of homogeneous insufflation sintering. 马钢技术中心自主研制的动力喷洒头能满足烧结均匀喷洒的要求;
英英解释
n.
1. mechanical device that attaches to a garden hose for watering lawn or garden