1·The heart monitor shows low levels of consciousness.
心脏监控器显示低意识水平。
—— 《柯林斯英汉双解大词典》
2·So-called serpentine soils, for example, are deficient in calcium, and only plants able to tolerate low levels of this mineral can survive.
例如，所谓的蛇形土壤缺乏钙，只有对低水平的这种矿物质耐受的植物才能生存。
3·Recent studies do in fact show that high carbon dioxide levels are associated with warm interglacial periods, and low levels with cold glacial periods.
最近的研究确实表明，高二氧化碳水平与温暖的间冰期有关，而低二氧化碳水平与寒冷的冰期有关。
4·Low levels of straying are crucial, since the process provides a source of novel genes and a mechanism by which a location can be repopulated should the fish there disappear.
低水平的游离是至关重要的，因为这个过程提供了一种新基因的来源和一种机制，通过这种机制，如果该地鱼群消失，可以重新繁殖该种群。
5·Low levels of choline in the body can give rise to high blood pressure.
体内胆碱含量低可引发高血压。
—— 《柯林斯英汉双解大词典》
6·High carbon dioxide levels are associated with warm interglacial periods, and low levels with cold glacial periods.
高二氧化碳含量与温暖的间冰期有关，低二氧化碳含量与寒冷的冰期有关。
7·Carnivorous plants are so finely tuned to low levels of nitrogen that this extra fertilizer is overloading their systems, and they eventually burn themselves out and die.
肉食性植物能很好地适应低浓度氮，因此这些额外的肥料会使它们的系统负担过重，最终它们会被压垮并死亡。
8·Abnormally low levels of acylcarnitine have been observed in patients with narcolepsy.
发作性睡病患者的酰基肉碱含量异常偏低。
9·Low Levels of Radiation Found in American milk.
美国牛奶中发现低量放射物。
10·Very low levels are found in plants, water and air.
其在植物、水和空气中的含量非常低。