Williams lives in a transition period from plantation economy to industrialized economy.
威廉斯生活在从种植园经济到工业化经济的过渡时期中。
Larch plantation is one of the main commercial forests in north China and has an important contribution to the national economy.
落叶松人工林是我国北方林区主要用材林之一，对我国的国民经济建设起到重要作用。
This is the synthetic effect of market demand, resources gift, plantation system, social economy and the niche condition etc.
这是市场需求、资源禀赋、种植制度、社会经济及区位条件等因素综合作用的结果。
This is the synthetic effect of market demand, resources gift, plantation system, social economy and the niche condition etc.
这是市场需求、资源禀赋、种植制度、社会经济及区位条件等因素综合作用的结果。
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