The group's focus is on coastal and giant sequoias.
该组织目前的研究重点是海岸红杉和巨杉。
Giant sequoias are unimpressed by your puny human lifespan.
与巨型红杉800至1300年的生命跨度相比，人的寿命极其微不足道。
No, the largest sequoias in northern California weigh more than six blue whales.
不，是在加利福尼亚北部个头最大的红杉，它的重量是蓝鲸体重的6倍多。
The giant sequoias, which the project also seeks to clone, are native to the western Sierra Nevada.
该项目试图克隆的巨杉生长在内华达山脉西部。
The northwest settlers who discovered the sequoias in the 19th century were stunned by what they saw.
19世纪来自西北部的拓荒者发现红杉树时，他们被眼前的景象惊呆了。
Such "fire scars" in long-lived species like giant sequoias allow him to estimate the past frequency of forest fires.
这些在长寿物种，如巨红杉中留下的火灾印迹，使得他能够估计过去森林火灾的频次。
The new research extends Swetnam's previous tree-ring fire history for giant sequoias another 1, 000 years into the past.
这项新研究将史威特南之前有关巨型水杉年轮记录火灾历史的研究再次向前推进了1000年。
Werner used small cuttings of sprouts and other plant material, including some cuttings from the upper reaches of giant sequoias.
就红杉来说，沃纳先生使用一截一截的树芽和其它植物材料，包括从巨杉顶部截下来的一些木块。
In the case of the redwoods, Mr. Werner used small cuttings of sprouts and other plant material, including some cuttings from the upper reaches of giant sequoias.
就红杉来说，沃纳先生使用一截一截的树芽和其它植物材料，包括从巨杉顶部截下来的一些木块。
Sequoias are spectacular redwood trees, towering 300 feet high. But these trees have unusually shallow root systems. So why don't they crash to the ground in strong winds?
红杉是高耸三百呎的壮丽红木树，但这些树的根往往非常浅，那为何它们面对强风也不致折断倒地呢？
However, ancient giant sequoias can have trunks that are 30 feet in diameter — far too big to be sampled using even the longest coring tools, which are only three feet long.
然而，古代巨型水杉木的树身可以长到直径30英尺——即使最长的年轮取芯工具(长度只有3英尺)也无法顺利取样。
Between the years 800 and 1300, while Europe was still slogging its way through the dark ages, the California sequoias were enduring a dry shift in the climate that sparked more wildfires.
800至1300年之前，欧洲还在艰难地穿行于暗无天日的时代，而加州红杉却经受了气候持续干旱、野火频发的考验。
Between the years 800 and 1300, while Europe was still slogging its way through the dark ages, the California sequoias were enduring a dry shift in the climate that sparked more wildfires.
800至1300年之前，欧洲还在艰难地穿行于暗无天日的时代，而加州红杉却经受了气候持续干旱、野火频发的考验。
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