查询词典 timberline

N Oregon National Guard Blackhawk helicopter flies over cloud-shrouded Mount Hood as the search for two missing climbers continues as seen from Timberline Lodge in Government Camp, Ore., Monday, Dec.

P / Don Ryan 俄勒冈州国民警卫队黑鹰直升机飞越云笼罩作为两名失踪的登山者寻找胡德山继续从冷杉别墅于政府营，俄勒冈州，星期一，12月14日。

The changing climate first affects the structure of alpine timberline at an autecological level, and further affects the movement of the timberline as a whole.

气候变化首先从个体的水平影响林线的内部结构，然后才影响到作为整体的林线的推移，因此研究乔木个体生理活动与气候条件之间的关系，对于研究高山林线对气候变化的响应具有重要意义。

The results showed that:(1) the upper elevation limit of the closed forests was found to be 4320 m; the timberline elevations was 4520 m on the sunny side with a gradualtype;(2) for the diameter class structure of the populations, most individuals were from Ⅰto Ⅳ, the number decreased sharply with the increase of diameter class, the survival curves were between Deevey type Ⅰ and Ⅱ, with an approximately stalbe trend; the variation trends of mortality rate q(subscript x and hazard ratek(subscript x were similar;(3)the analysis by time sequence model demonstrated that the individuals of the older age class would be increasing, indicating that S.

死亡率q(下标 x和消失率k(下标 x变化基本趋势一致；都在Ⅲ龄级出现低谷；以后死亡率和消失率曲线均随龄级增加而上升；时间序列分析表明；未来种群发展老龄个体逐渐增多。

After measurements of physiological activities and environmental factors of timberline trees, including Picea meyer...

虽然林缘的湿度条件中等，但良好的光照和温度条件对光合作用有促进作用

On the timberline of the mountain, where the storms beat in full fury, we find the sturdiest frees the hearty veterans of the ten thousand blasts.

在山领的森林线上，暴风雨抽击得最凶猛的地方，我们发现了最坚强的树木，身经万次厉风的矍铄老将。

The alpine belt is the temperature-driven treeless region between the timberline and the snowline.

高山带是指自然气候森林边界即林线到雪线之间的无林区域。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。