Small evergreen tree of tropical America with edible fruit; used chiefly as grafting stock.
美洲热带常绿小型树种，果实可食；主要用于嫁接树干。
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摘要将信用风险、利率期限结构引入到二叉树定价模型中，建立以股价和利率为标的变量的二叉树定价模型。
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Requirement of low temperature on seeds of wild stock of pear tree in Guizhou breaking of dormancy
贵州野生梨砧木种子解除休眠的低温需求
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1792年在华尔街的一棵梧桐树下集会创办纽约证交所（NYSE）的那些经纪人，创造出了某种不朽的东西。
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establishment of supply system planning for fruit tree nursery-stock growing in liaoning
辽宁省果树良种苗木繁育供应体系建设规划
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research on the estimate growing stock by using dbh of stand and individual tree
采用林分平均胸径和株数推算亩蓄积量的研究
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The tea-oil tree of large area forest transform, thoroughbred nursery stock is to assure at all.
大面积的油茶林改造, 良种苗木是根本保证.
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stock is the root, tree, or portion of a tree which the graft is set.
砧木是根, 或是树体, 或是在它上面嫁接树体的部分.
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