双段煤气发生炉气化效率和热效率均比单段式炉高，有上下两个煤气出口，可输出不同热值的煤气。

Double section gas occurrence boiler gasification efficiency and thermal efficiency than single sections of furnace are high, there is two gas exports, and output of gas calorific value of different.

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研究表明，中国城市航空网络是一个小世界网络，具有短的平均路径长度和大的簇系数，且其度分布服从双段幂律分布。

The present network is a small-world network with short average path length and high degree of clustering, and its degree distribution follows a double power law.

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研究表明，中国城市航空网络是一个小世界网络，具有短的平均路径长度和大的簇系数，且其度分布服从双段幂律分布。

It is shown that the present network is a small-world network with short average path length and high degree of clustering, and its degree distribution follows a double power law.

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The end result is you can design now very specific double stranded RNA sequences, that when delivered into cells again will activate this process of natural degradation of an existing messenger RNA.

最终的结果是,你现在能够设计针对性很强的,双链RNA序列,当这段序列被转入细胞后会激活,对已有信使RNA进行降解的过程

耶鲁公开课 - 生物医学工程探索课程节选

Now the nice thing about this is that the degradation mechanisms seem to persist for some period of time, beyond the time at which you deliver the double stranded RNA; whereas, obviously, this mechanism here is only going to exist for as long as the anti-sense sequence is present.

而好消息是降解过程会持续一段时间,比你转入双链RNA的时间要长,但是,这种机制只会在,有反义链的时候发挥作用

耶鲁公开课 - 生物医学工程探索课程节选