结果表明：（1）相思树皮结构为叠生构造。
The research results show below: (1) The bark of Acacia spp.
本文研究无性系幼树树皮及一年生苗叶部的乳管系与产量早期预测的关系。
This article describes the relation between latex vessel systems in the bark of young buddings and the leaf of yearling buddings and yield prediction at nursery stage.
用生烃模拟实验方法得到树皮煤的产烃率很高，是迄今已知的最好的煤成油烃源岩；
The hydrocarbon-generating simulation experiments proved that the hydrocarbon productivity of bark coal was very high, it being the best source rock of coal-formed oil known up to now.
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