维持生命的

Thischaracteristic of Atriplex canescens is consistent with that of many local species. TheLCP of Atriplex canescens in different treatments (light, medium, no and heavy watersoil stress) are 314.8μmolm~(-2)s~(-1)、272.5μmolm~(-2)s~(-1)、176.7μmolm~(-2)s~(-1)、143.1μmolm~(-2)s~(-1), respectively, which indicates that the LCP of Atriplex canescens is reducingwith the escalation of soil water stress. This tendency is favorable for Atriplexcanescens under drought stress to maintain certain photosynthesis even in weaksunlight so as to ensure the survival of itself, and keep balance between maintainingwater content inside and its photosynthesis.

四翅滨藜在不同土壤水分胁迫下的光补偿点：轻度土壤水分胁迫、中度土壤水分胁迫、无土壤水分胁迫和重度土壤水分胁迫下的光补偿点分别为，314.8μmolm~(-2)s~(-1)、272.5μmolm~(-2)s~(-1)、176.7μmolm~(-2)s~(-1)、143.1μmolm~(-2)s~(-1)，说明四翅滨藜的LCP随着土壤水分胁迫的加重而呈现降低的趋势，这种变化有利于处在干旱胁迫中的四翅滨藜在光强较弱的条件下仍然能维持一定的光合作用，以满足植物自身生命活动所需，同时也可以使植物在保持体内水分和进行光合作用之间寻找平衡。

They clung to the purple moors behind and around their dwelling - to the hollow vale into which the pebbly bridle - path leading from their gate descended , and which wound between fern - banks first , and then amongst a few of the wildest little pasture - fields that ever bordered a wilderness of heath , or gave sustenance to a flock of grey moorland sheep , with their little mossy - faced lambs :- they clung to this scene , i say , with a perfect enthusiasm of attachment

她们眷恋住宅后面和周围紫色的荒原一眷恋凹陷的溪谷。一条鹅卵石筑成的马道，从大门口由高而低通向那里，先在蔽树丛生的两岸之间蜿蜒着，随后又经过与欧石南荒原交界的几个最荒芜的小牧场。一群灰色的荒原羊和苔藓般面孔的羊羔，都靠这些牧场来维持生命嗨，她们热情满怀地眷恋着这番景色。

But Hazara farmers in Behsood say that the Kuchis' own animals are stripping grasses that the locals need to cut and dry to keep their sheep and goats alive during harsh highland winters.

但是Behsood的哈加拉农民则说，是Kuchi人自己的牲畜们把草吃绝了，当地人才不得不先把草储存好，这样到了严酷的冬季，他们的绵羊和山羊才能在高原上维持生命。

What, therefore, the wage-labourer appropriates by means of his labour, merely suffices to prolong and reproduce a bare existence.

因此，雇佣工人靠自己的劳动所占有的东西，只够勉强维持他的生命的再生产。

The famine lasted for a couple of years or more, until the mid-1960s, when life improved. We still didn't have enough to eat, but every person was allotted about 200 pounds of grain per year; that combined with the wild greens we foraged in the fields was enough to get by on, and fewer people starved to death.

这样的饥饿岁月大概延续了两年多，到了六十年代中期，我们的生活好了起来，虽然还是吃不饱，但每人每年可以分到两百斤粮食，再加上到田野里去挖一点野菜，基本上可以维持人的生命，饿死人的事愈来愈少了。

The village uncertified 'doctor' arrived with glucose to inject into his veins. It was too late. He was skin and bone on a bamboo bed beneath a starry night.

村子里一位不知名的&医生&想给他注射葡萄糖以维持生命，但是一切已经太晚了，当时的他已经只剩皮包骨头，无助的躺在自家的竹床上，仰望星空。。。

As a herdman, there is no need to hypothesise on the meaning of life, what you do need, though, is a well-balanced nature, plus a fair amount of humility, living at the edge of the desert presents a great many hurdles to economic survival, clearly, herding camels must be one of the most difficult forms of animal husbandry.

作为牧人，没有必要假设生命的意义。然而，你确实需要平衡的天性，再加上一定程度的谦卑。住在沙漠边缘给经济的维持造成很多障碍。显然，放牧骆驼肯定是畜牧业中最困难的行当之一。

As a herdman, there is no need to hypothesise on the meaning of life, what you do need, though, is a well-balanced nature, plus a fair amount of humility, living at the edge of the desert presents a great many hurdles to economic survival, clearly, herding camels must be one of the most difficult forms of animal husbandry.

dddtt 牧人，没有必要假设生命的意义。然而，你确实需要 sSbBwW.cOm 平衡的天性，再加上 www.8 tt t8.com www.8 tt t8.com 的谦卑。住在沙漠边缘给经济的维持造成 8t t t8障碍。显然，放牧骆驼肯定是畜牧业中最困难的行当之一。

Thiols are also active in the catalytic sites of enzymes,and play important roles in metabolic pathways.

细胞内巯基化合物(包括半胱氨酸、高半胱氨酸和还原型谷胱甘肽等)在维持生命体系的氧化还原动态平衡方面起着重要的作用，它们是与酶活性有关的最具有反应性的官能团，并且在酶代谢过程中起着重要的作用。

To study biological active elements which maintain normal biological functions is one of the new scopes of life sciences.

在活的有机体中，维持正常的生物功能不可缺少的各种生理活性元素是当今生命科学研究中的一个崭新领域。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。