延安大生产运动虽然过去整整半个世纪了,但对我们今天弘扬自力更生、艰苦奋斗、密切联系群众的延安精神仍有着重要意义。笔者有幸访问了当年南泥湾的勘察、设计者刘宗义,他详细地忆述了自己当年勘察南泥湾以及中央军委直属炮兵团首垦南泥湾的情形—— Although the past half a century has passed in the large-scale production movement in Yan’an, it is still of great significance for us to carry forward the Yan’an spirit of self-reliance, hard work and close ties with the masses today. The author was fortunate enough to visit the investigation and designer of Nanniwan, Liu Zongyi, who elaborated on his own investigation of Nanniwan and the case of Nanning Bay, the first artillery regiment directly under the Central Military Commission,