清缝 meaning in English

joint cleaning
opening joints

The list includes rollers , concrete trowels and site pumps , plus light towers for night work , and generators
这个产品清单中包括压路机，混凝土清缝铲和工地泵，还有用于夜间工作的照明塔和发电机组。
The crack - cleaning and cementation machine is one kind of automatically joint - cleaning and joint - cementation machinery , which is developed according to airfield expansion joint ' s special situation and its requirements
本论文主要论述研制的全自动清缝、灌缝的机场道面清灌缝机的总体和具体结构。