Long March 1D
- 长征一号丁运载火箭（长征一号丁是长征一号的改进型，三次试射，两成一败，现已退役。主要改进是提高了一子级发动机推力，使二、三两个子级性能提高。改进后的长征一号D火箭能发射各种低轨道卫星，卫星入轨姿态可以是自旋或三轴稳定状态）
Long March 1D
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abstract:
Long March 1D is the improved version of Long March 1 rocket stage for Chinese space agency craft, mainly for the thrustor of stage 1, from 1020 kilonewtons to 1101.2 kilonewtons, also improved the performance for stage 2 and stage 3.
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