Down to the point where they were undetectable.

S.defense technology to China, including data on an electronic propulsion system that could make submarines virtually undetectable.

技术中包括一种让潜艇不可侦测的电子推进系统有关的数据。

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M: Look, it says here that the noise from it should be undetectable by other people.

女：什么问题？男：你看，这里写着随身听发出的声音其他人不会听到。

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The sweet smell of success might, in other words, actually be undetectable.

换句话说，胜利的甜蜜气味是无法觉察的。

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The implication is that the effect is to make what was undetectable detectable.

这就意味着它的效果，就是让未曾现形的密码现形。

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Almost undetectable with even the most delicate instruments.

即使最精密的仪器都几乎无法察觉的。

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All welds shall be undetectable in finished work.

完成设备的所有焊接应无法探察。

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Picking locks is now undetectable to everyone standing around watching.

开锁现在不被那些在周围守卫的人注意。

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Like a criminal he began to fashion in his own mind the undetectable crime.

好像一个罪犯，他开始通盘考虑这件不能为外人发现的罪行。

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While the NOS activity under Al stress were undetectable.

而铝胁迫下的NOS活性未检测出来。

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But that means the soul isn't really undetectable.

但是这就意味着，灵魂不是完全不可检测的。

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A formula of undetectable error probability is ( deduced.)

推导了级联码的不可检测错误概率。

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So the method simplifies the process of identifying undetectable faults.

故可由此简化不可测故障的识别过程。

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Inpainting is a technique of modifying an image in an undetectable form.

修描（Inpainting）是用察觉不出的方法来修改图像的一种技术。

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Fine-grained homogeneous rock ( such as basalt) containing minerals undetectable by the naked eye.

成分细密的同质岩石（如玄武岩）含有肉眼看不见的矿物。

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They are certainly ungracious, given that Rudd lobbied UN Secretary-General Ban Ki-moon to appoint Downer as his part-time Special Adviser on Cyprus when he retired from politics in2008.

他们当然有失风度，由于陆克文游说联合国秘书长潘基文任命唐纳作为他兼职的塞浦路斯问题特别顾问在2008年时，他从政治退休。

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She entered the room with an air more than usually ungracious, made no other reply to Elizabeth's salutation than a slight inclination of the head, and sat down without saying a word.

客人走进屋来的那副神气非常没有礼貌。伊丽莎白招呼她，她只稍微侧了一下头，便一屁股坐下来，一句话也不说。

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and when she rose to take leave, Elizabeth, ashamed of her mother's ungracious and reluctant good wishes, and sincerely affected herself, accompanied her out of the room.

当夏绿蒂起身告别的时候，伊丽莎白一方面由于母亲那些死样怪气的吉利话，使她听得不好意思，另一方面自己也委实有动无衷，便不由得送她走出房门。

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MRS HUBER: Edie, you can be homeless or you can be ungracious.

Edie，你可以无家可归，也可以穿着寒碜。

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An ungracious industrial city; this curt summary is not meant to be ungracious; ungracious behavior.

粗俗的工业城市；简略的总结并不意味着不优雅；粗俗的行为。

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Her ungracious acceptance of my offer.

她接受我的提议时那种勉强的态度。

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