Conclusions in evaluating coronary reserve function, results of dipyridamole SPECT was rather conformable to measures of intracoronary Doppler CFR, but they cannot be replaced each other.

结论在评价冠脉储备功能方面，冠脉内多普勒血流储备与核素心肌显像潘生丁试验结果有较高的符合率，但尚不能相互替代。

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So when they form, the histones are stripped off and replaced with another molecule called protamine, which shapes the DNA into an even tighter bundle, where the genes cannot be read.

所以当他们成形的时候，组蛋白被脱离并且被一种叫做鱼精蛋白的分子代替。它可以把DNA组装成更加紧密的一束，这些基因是无法被阅读的。

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According to the company, the large and heavy vacuum tube-based traveling wave tube amplifiers cannot be effectively replaced by GaAs transistors because they a much lower breakdown voltage.

根据公司的消息，真空管将不会被砷化镓晶体管取代。

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They also represent a part of a healthy environment that cannot be replaced.

VOA: special.2009.05.12

In particular, the Bank is concerned that teachers are being affected by AIDS at such a rate that they cannot be replaced quickly enough to meet one of the key objectives, that of universal primary education by 2015.

ECONOMIST: The education of Paul O'Neill | The

In the current harsh operating environment, a small number of cabin crew, mechanics or catering staff can bring a carrier to its knees within weeks especially if they cannot easily be replaced.

ECONOMIST: The sick cope best with labour pains | The

Officials have promised that parking lots and trash yards that the new apartments will be built upon will be relocated and replaced, but they cannot guarantee that all of the other spaces will be replicated.

WSJ: Pricey NY apartments to rise on public housing