求翻译：1,工业结构的扩展和升级。工业结构的扩展主要表现为一大批新兴工业部门从无到有、从小到大地发展起来. 首先是战后初期由军需为主向民用轻工业为主的转变；继而是向重工业化的转变；石油危机后又开始向知识技术集约型转变。是什么意思？

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1, the industrial structure of expansion and upgrade. Development of the main industrial structure of the emerging industrial sector performance for a large number have started from scratch and grown in early post-war. The first is to civilian light industry is dominated by the inevitability of chan

1, industry structure expansion and promotion.The industry structure expansion main performance is a large quantities of emerging industry sector grows out of nothing, develops from infancy to maturity. First is the postwar initial period by the military supplies primarily to the civil light industr

1, extension and upgrading of industrial structure. Expansion of the industrial structure mainly finds expression in a large number of emerging industrial sectors developed from scratch, from small to the Earth. First, the early postwar shift from military to civilian consisting mainly of light indu