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搜索结果: 1-8 共查到理学 fresh-water相关记录8条 . 查询时间(0.078 秒)
More than half of the world's fresh water supply is warming rapidly, according to an NSF- and NASA-funded study.Using satellite data and ground measurements collected from 235 lakes on six continents ...
Countless numbers of vacationers spent this summer enjoying lakes for swimming, fishing and boating. But are they loving these lakes to death?The water quality of the nation's lakes is threatened not ...
Engineers at the University of California, Riverside have developed a new way to recover almost 100 percent of the water from highly concentrated salt solutions. The system will alleviate water shorta...
Global warming could raise sea level by several tens of centimeters in the next fifty years, about one meter in the century, and several meters in the next few centuries by expanding ocean water, by m...
The chemical and isotopic composition of water discharging from springs, surface and groundwater in the Litani river basin were studied. The data include field measurements of specific conductance, pH...
A 、vealth 0f literature has been published in the studies of Chinese freshwater fish chromosomes within recent years.In this paperwe review the inter-and intraspecific genetic diversities found in ...
Microstructure is examined in 61 temperature-depth profiles which were obtained at one location in a fresh water lake. Over the 12 hr of observation, specific features of the microstructure are contin...
本文报道14种淡水鱼细胞核DNA含量的测定结果。这14种鱼DNA含量变异较大,从2.20pg到5.0pg不等,其中大多数种类具有较高的DNA含量。此外,我们还结合已有资料,讨论了迄今已研究的58种中国淡水鱼(主要为鲤科鱼)DNA含量的变异特征、意义及影响DNA含量变异的因素。

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