Bark beetles in lodgepole pine used to be more selective, leaving the younger and healthier trees alone.
海滩松上的树皮甲虫会有选择性地寄居在松树上，避开年轻健康的松树。
The first is that jack pines occur in patchier stands than the continuous swaths of lodgepole on the west coast.
首先，相对于海滩松在西海岸的连续分布，短叶松仅呈零散的块状分布。
The cold air sweetened, banded pebbles and crumbs of soil cast sudden pencil-long shadows and the rearing lodgepole pines below them massed in slabs of somber malachite.
凛冽的空气慢慢变暖，山峦突然间洒下了铅笔一样细长的影子，山下的黑松郁郁葱葱，好像一堆堆阴暗的孔雀石。
The narrow, towering lodgepole pine trees that populate North America's western forests may disappear in the coming decades due to climate change and attacking beetles, a study said Monday.
狭长的，树尖儿直耸入天的海滩松生长在美国西岸丛林中。星期一，一项研究表明，海滩松有可能在未来数十年中，因为气候变化和病虫害而灭绝。
Pipe lodgepole-steel tunnel support technique is a strong composite support system consisting of advance pipe lodgepole, support stell vault, tin plate packer and working surface plug-back.
管棚复合钢支撑技术，是一个通过超前管棚、支撑钢拱、白铁皮隔离、工作面封堵的相互配合和共同作用，形成了具有强大支护抗力的复合支护体系。
Pipe lodgepole-steel tunnel support technique is a strong composite support system consisting of advance pipe lodgepole, support stell vault, tin plate packer and working surface plug-back.
管棚复合钢支撑技术，是一个通过超前管棚、支撑钢拱、白铁皮隔离、工作面封堵的相互配合和共同作用，形成了具有强大支护抗力的复合支护体系。
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