It is possible to recycle C&D waste to create raw material for new structures, such as concrete. During the recycling process, the material undergoes a crushing stage so that the fragments can be classified according to size and then reused. The recycled concrete particles can be used as...
aBeijing is a clean city. here are two dustbins in a paek. One says:Don"t litter Theother tells us to ercycle. Recycle means to use again. 北京是一个干净的城市。 这二个垃圾箱在paek。 你认为:唐" t废弃物Theother告诉我们对ercycle。 回收手段再使用。[translate] ...
Plastics, as we refer to them today, are mainly derived from a petroleum source; oil that has been taken from the Earth, broken down, and parts of that oil are then used to make plastic. The Bic pen is made of polystyrene plastic and was first manufactured in 1950. To date, there ha...
Reference numeral 13 denotes an eluent supply line; 14, an extract discharge line; 15, an optical isomer-containing solution supply line; 16, a raffinate discharge line; 17, a recycle line; and 18, a pump. In the state of arrangement of the adsorption chambers 1 to 12 and the lines ...