本文引入并研究了叶层结构的定向性，作为应用，讨论了李群在流形上的自由作用，给出了存在李群自由作用的一个必要条件。
In this paper, the orientability of foliations was investigated, and an application to the free action of Lie groups on manifolds was given as well.
他们认为，它应该用来保护个人权利和公共自由，在个人的努力无效时，它具有特殊的作用。
They believed that it should be used to protect individual rights and public liberty, and that it had a special role where individual effort was ineffective.
只有当船体从升降架上自由悬挂，脱离海床和周围泥浆的吸力作用时，打捞工作才进入第二阶段。
It was only when the hull was hanging freely from the lifting frame, clear of the seabed and the suction effect of the surrounding mud, that the salvage operation progressed to the second stage.
这些学者认为，即使在十九世纪后期，随着政府在经济中的作用大大减弱，自由放任政策也没有完全取得胜利。
These scholars argue that even in the late nineteenth century, with the government's role in the economy considerably diminished, laissez-faire had not triumphed completely.
我的朋友们，上一世纪的这一重大考验，本世纪正在展开的事件，都证明美利坚合众国对推动和平和捍卫自由起着决定性的作用。
My friends, the momentous trials of the last century, and the unfolding events of this century, attest to the decisive role of the United States in advancing peace and defending freedom.
问题是，我们是否有耐心让自由市场起作用，以及忍受几年的困难，但是接着会形成一个更强大的国家。
The question is, do we have the patience to let the free market function and endure several years of hardship, but then emerge as a much stronger country.
我想知道自由设计师们设计的产品，可以在哪些地方买到，如果可以买到的话，这些产品又将对世界起到什么作用？
I'd like to know if the products of freedom by design are available anywhere. And if so, how can they restrict the world?
“ 2020年FLOSS路标”这份报告的作者就2020年自由和开源软件(FLOSS)的作用作出若干预测，并为业界推荐80项建议。
The authors of the report, "2020 FLOSS Roadmap", made a number of predictions about the role of free, libre and open-source software (FLOSS) in 2020, and 80 recommendations for the industry.
30年来，这三种思想都发挥了出色的作用，增进了繁荣和自由。
Each of these ideas did sterling service for 30 years, increasing prosperity and freedom.
因为市场作用会导致粮食价格短期内的波动，因此许多国家不允许粮食市场的自由运行。
In many countries, food markets are not allowed to operate freely precisely because they generate confusing price swings in the short term.
因为利率只在你想要巩固未清偿的债务时才起作用，你有完全的自由来找一种卡片为你的情况服务。
Since interest rates only matter if you have existing debt that you're trying to consolidate, you have total freedom to find a card that works for your situation.
茶抑制自由基产生的能力比维生素E好要强，而且它还对动脉硬化具有很好的预防和治疗作用。
The free radical-inhibiting property of tea is more potent than that of vitamin E, and tea is a proven preventive and treatment for hardening of the arteries.
生物作用可通过降低自由水含量和加热来控制。
The biological forces are controlled by reducing the free water content and by heating.
实际上自由贸易的特点一直在发挥作用。
Surely the point of free trade has always been to do those things.
威尔森目前是自由撰稿人，她认为工作的决定对男孩们的成长没有负面作用。
Wilson, who now works as a freelance, thinks the decision to work had no negative impact on the boys, now 12 and eight.
他还说道他的组织为了“赢回我们持枪的自由”正在准备挑战国内那些具有限制作用的反枪支法案(one lawsuitatatime：一次起诉一个法案)。
He says that his organisation is preparing challenges against restrictive anti-gun laws across the country, in order to "win back our firearms freedoms one lawsuit at a time".
他们必须能领会我们的基本的自由权利的历史意义，以及法律在我们社会中的作用。
They must be albe to appreciate the historical relevance of our fundamental freedoms and the role of law in our society.
XSLT语言给了处理器很大的自由，让它可以按其选择的顺序对表达式求值，因为它没有副作用。
The XSLT language gives the processor great freedom to evaluate expressions in any order it chooses, because of the absence of side effects.
但是，哈利·维尔注意到，秀丽隐杆线虫不能用于自由基对干细胞作用的研究，有证据表明这一点或许非常值得注意。
Halliwell noted, though, that C. elegans can not be used to study the effect of free radicals on stem cells, which evidence suggests may be important.
如果衰老或疾病过程中的应激大幅增加的话，自由基的破坏作用可能就会大于其积极作用。
If the stress of aging or disease increases sufficiently, he said, the damage caused by the free radicals might overwhelm their positive effects.
阻止商品、服务以及资本的跨界自由流动是十分危险的，因为想要使市场发挥作用，你就必须令套利发挥作用。
Preventing the free flow of goods and services and capital across international boundaries. That is a danger because in order for markets to work, you need arbitrage to work.
马格·列夫这样说：“从观察结果看，物种似乎是自由的和别的物种相互作用，物种数量巨大时也是这样。”
Margalef put it this way: "From empirical evidence it seems that species that interact freely with others do so with a great number of other species."
各种类型的茶都富含有某种被称为类黄酮的抗氧化物质，黄体酮的起防止自由基破坏细胞的作用。
Both types of tea are abundant in certain antioxidant chemicals called flavonoids, which obstruct the action of cell-damaging free radicals.
特别是在全球经济萧条时期，市场自由化可以在刺激增长、挽救失业、提高生活水平方面发挥一定作用。
Particularly at a time of global economic duress, market liberalisation can play a role in stimulating growth, saving jobs and enhancing living standards.
“现在，唯一起作用的就是，交接程序有序的进行”，有一个自由公平的竞选环境，他说。
"The only thing that will work is an orderly transition process that begins right now" and leads to free and fair elections, he said.
“现在，唯一起作用的就是，交接程序有序的进行”，有一个自由公平的竞选环境，他说。
"The only thing that will work is an orderly transition process that begins right now" and leads to free and fair elections, he said.
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