These front-line defences are backed up by armoured units in reserve.
前线防御有后备装甲部队的支援。
The harbour's sea defences are in poor condition.
港口的海防工事状况很差。
He emphasized the need to maintain Britain's defences at a level sufficient to deal with the unexpected.
他强调需要将英国的防卫力量维持在足以应付突发事件的水平。
They appeared in court not to raise defences, but to challenge the court jurisdiction.
他们来法院不是应诉，而是抗辩。
Our defences were not easily breached.
我们的防御工事不易被突破。
Mrs Merkel has shored up her defences.
默克尔已经强化了她的防御措施。
Some foods positively bolster your defences.
某些食物确实能增强你的防御。
Some of these defences are simple barriers.
不过其中的一些防御只是一些简单的屏障。
The enemies' defences were softened up after bombing.
轰炸后的敌人防御被削弱了。
Instead, they are suggesting improvements to its defences.
与之相反，他们正建议改善其防御。
Recognize Shared realities and the need for collective defences.
面对共同的实际情况需要采取集体防御的行动。
As Yahoo! Threw up its defences, Microsoft also became the subject of rumours.
在雅虎开始其防御措施的同时，微软也成为谣言的话题。
They have thrown their energies into building up ever more powerful defences.
他们已经投入更多的力量建起更强大的保护壁垒。
Since then, many large companies have beefed up their software and hardware defences.
从那以后，许多大型企业已增强了自身的软硬件防御能力。
Yoann Gourcuff The France and Bordeaux midfield player is adept at unlocking defences.
约翰·古尔库夫：在波尔多效力的法国中场球员擅长撕开防守。
Capital controls should be part of their defences, too, against sudden floods of foreign cash.
为了防止外汇的大量涌入，对现金的控制是他们的防御政策的一部分。
Other defences are actions, rather than things, some of them automatic and some of them not.
其他的防护措施，不是静止的物体，有些是自动完成的过程，而有些则不是。
Defence companies such as Lockheed Martin have seen some of their cyber-defences penetrated.
许多公司如洛克希德·马丁航空公司等的网络防御都遭到渗透。
Instead of erecting a single barrier, they now set up several lower defences that reduce rust's harm.
他们不是架设一个单独的障碍，而是设置几个低级别的防御，来减少锈病的危害。
Their own environment includes polluted waterways where strong defences against pathogens are a must.
它们生存的环境就包括受到污染的水域，在这种地方，它们必须具有对病原体的强大防御能力。
The defences around the plant's nuclear reactors were wrecked by an earthquake and tsunami in March.
该核电厂的核反应堆周围的护栏在三月份的地震和海啸中被摧毁。
The first time you get infected, your immune system has to rely initially on innate, non-specific defences.
首次感染时，免疫系统最初依靠先天非特异性防御。
These continually evolving attacks are far more likely to go unseen and unchecked by existing network defences.
这些不断演变的攻击更有可能通过现有的网络防御展开，看不见而且不受控制。
The defences have failed badly at all three of the reactors which were running at the time the earthquake hit.
地震发生时正在运行的三个反应堆的安全防护装置遭到了严重损毁。
One senior military official says General Alexander’s priority will be to improve the defences of military networks.
一位美军高级军官说亚力山大将军的优先权将改善军用网络的防御能力。
ANTIBODIES - the linchpin of our natural defences against bacteria and viruses - may also protect us from strokes.
抗体——人类抵抗细菌和病毒的天然防护的关键——也可能保护我们免遭中风。
Bacteria have defences against viruses in the form of chemicals called restriction enzymes, which chop up foreign DNA.
细菌有一种对病毒的防御机制：一种叫做限制性内切酶的化学物质可以切断外源dna。
Bacteria have defences against viruses in the form of chemicals called restriction enzymes, which chop up foreign DNA.
细菌有一种对病毒的防御机制：一种叫做限制性内切酶的化学物质可以切断外源dna。
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