Engineering cost. Greening and shaping refers to pruning branches of trees, such as cutting, sawing, binding, tying, tying, etc., to make trees grow into the specific shape that growers want. The expenses incurred in the work process are called greening engineering expenses. Greening is greening. Covering land with green means greening. To be green, only green plants can be used, and all kinds of green plants, whether trees or grass, can be planted on the land.