... secondary oil production 二期原油生产 secondary timber production forest 低产用材林 bacterial secondary production 细菌的二次生产 ...
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低产人工用材林 low-yielding timber plantation
低产用材林
Low yield timber forest
以上为机器翻译结果，长、整句建议使用 人工翻译 。
在调查研究全省现有低产林及疏林资源基础上，着重分析了低产用材林形成的原因。并提出了低产用材林改造的技术路线与相应措施。
Technique and countermeasures were proposed for transformation of low yield timber forest after analysis on its causes through investigation on current resources of low yield and scattered forest.
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