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1·One kind of tree is the white pine. Another is the loblolly pine.

其中一种就是白松，另外一种是火炬松。

2·Another is the loblolly pine. Windbreaks not only protect land and crops the wind.

另一种是火炬松。防风林不仅能保护土壤和庄稼。

3·There is conflicting evidence regarding the amount of north - south differentiation in loblolly pine.

关于火炬松南北分化的数量存在着相抵触的证据。

4·Studies have shown that the white pine and loblolly pine are two kinds of trees that grow well on marginal land.

研究表明，美国五针松和火炬松在边缘土地上长势很好。

5·This paper deals with the spatial distribution patterns of the larvae of Diorycitria rubella in masson pine and loblolly pine using the frequency distribution analysis and aggregation indices.

应用频次分析法和聚集度指标法对微红梢斑螟在马尾松和火炬松林中的空间分布进行研究。