His team found "a significant upward shift of species optimum elevation, the altitude where species are the most likely to be found over their whole elevation range."
他的课题组发现物种会向高海拔移动，这些物种最易被发现的区域的海拔，大多都高于它们所生存的全部区域的海拔的平均值以上。
With the peaks of the Sierra Nevada on its west and the Carson Range on its east, high-altitude Lake Tahoe has a long winter.
和内华达山脉的山峰上，卡森西范围是东海，海拔塔霍湖有一个漫长的冬天。
The AURORA Generation IV system can be used on a wide range of low- and medium-altitude manned or unmanned vehicles that can accommodate payloads as low as 35 pounds.
第4代AURORA系统可用于中低空的有人或无人飞行器中，而增添的载荷仅为35磅（15.87千克）。
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