Simultaneously, food production has been constrained by a lack of scientific research.

同时，由于缺乏科学研究，粮食受到了限。

But three forces have long constrained corporate conduct: regulation, litigation and competition.

但是长期以来，有三股力量约束着企业行为：法规、诉讼和竞争。

For a while, Kelly's guardrails constrained Trump.

然而，凯利护栏只对特朗普起到了片刻约束作用。

With public spending, consumption and investment constrained, the government is relying on rising exports.

随着公共开支，消费和投资紧缩，政府开始依靠出口增长。

We are constrained in our love choices by what we've learned of love as children.

我们对恋人选择被小时候对爱情认知所局限。

We are not really constrained by function in hat making.

在作帽子时，我们其实不会被功能求限。

This is what makes constrained peptides so desirable for drug development.

这正是限性肽在药物开发中备受青睐原因。

You can edit, interpret and retell your story, even as you're constrained by the facts.

虽然发事情不可改变，但你可以编辑、解释和复述你故事。

Instead, disadvantaged groups are constrained by their economic, material and social circumstances.

相反，弱势群体受到其经济、物质和社会环境限。

Yet the true source of the crowding is not sky-high demand, but constrained supply.

然而，拥挤真正根源不是极求，而是有限供应。

It's possible those arcs are being constrained by small moonlets near the rings.

这些弧线可能为环附近小卫星所限。

Well, a whimper from a two octillion ton barely constrained nuclear powered fireball.

没错，一个两百亿吨几乎不受限核动力火球发出呜咽声。

The same applies to a psychologist. The constrained view of human nature.

心理学家是如此，人类本性受约束观点。

They debated alternative positioning, but every move seemed to be constrained by architecture.

他们讨论改成其他姿势，但似乎都会受于建筑。

Publicly, the U.S. does not seem to feel constrained by the ultimatum.

表面上看，这一最后通牒似乎并未令美国感到压迫。

For decades, the field was constrained by having hardly any data at all.

几十年来，由于几乎没有任何数据，该领域受到了限。

This means that a games actual writing tends to be constrained from the start.

这意味着游戏实际写作往往从一开始就受到限。

These initial efforts were often constrained by limited computational power and data availability.

这些最初努力往往受到有限计算能力和数据可用性限。

When he was gone I turned immediately to Jordan constrained to assure her of my surprise.

他走开之后，我马上转向乔丹——迫不及待地要告诉她我感到惊异。

That means the frequency of light absorbed is constrained by the physical properties of silicon itself.

这意味着被吸收光频率将受限于硅自身物理性质。