标准号:IS 3869 Pt.1-1966
发布日期:1967/2/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1This standard covers the general requirements for coal cutting machines of the under-cutting and skid-mounted type, generally used in shortwall system of coal mining.1.1.1 An illustration of a typical design of shortwall coal cutting machine is given in Fig. 1.