Layeredconstruction, seam position should be staggered with each other.
分层施工时，留缝位置应互相错开。
2
Layeredconstruction resulted in greater uniformity in the material itself and in its density and moisture content.
分层施工能得到更好的的密度、含水量以及材料本身的均匀性。
3
Construction elevator is an equipment for high-altitude operations used for layered transporting all kinds of building materials and construction personnel.