Firstly we should to influence systemsand machine production capacity factors of the roughly understanding can attain offered.
首先我们应该对影响制砂机生产能力的因素进行一下大致的了解才能做到有的放矢。
3
Also used for mechanism artificially systemsand, highway, railway, water conservancy, airports, architecture, cement, refractories, metallurgy industries production quality stone.