[Proj] I have an D_Beijing_1954 spatial reference, And I want convert it to Proj4, but don't know how.

[罗勇刚(Yonggang Luo)]

The following is the information need to convert:
angle_unit_desc:NULL
angle_unit_name:度
coor_offset_x:17.59
coor_offset_y:-128.14
coor_offset_z:-78.9
correction_coefficient:-2.68e-06
euler_angle_FAI:-0.22
euler_angle_KB:-0.98
euler_angle_OM:-0.59
geo_coor_desc:NULL
geo_coor_name:北京54地理坐标系
geocentric_origin_B:3.0
geocentric_origin_L:1.0
geocentric_origin_Z:3.0
ground_level_surface_desc:NULL
ground_level_surface_name:D_Beijing_1954
horizontal_scaling:360000.00000000006
majorsemiaxis:6378245.0
meridian_desc:NULL
meridian_longitude:0.0
meridian_name:Greenwich
minorsemiaxis:6356863.01877305
radian_per_angle:0.0174532925199433
sp_desc:NULL
sp_name:北京54地理坐标系
spheroid_desc:NULL
spheroid_name:_KRASOVSKY
vertical_length_unit:米
vertical_scaling:10.0


-- 
         此致
礼
罗勇刚
Yours
    sincerely,
Yonggang Luo
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