Today's chapter is going to be extra short because to be honest, bus trips are long and boring.

今天的这一章比较短，因为坐长途客车实在没意思。

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It's extra high energy, prompt burst, extra short time scale and complex construction of time and spectrum are very important in research of GRBs.

它的极端高能、极强烈的爆发、极短的时标和极其复杂的时间结构和能谱结构一直是伽玛暴研究的重要内容。

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This equipment can transfer not only extra short pulse waveform signal but also slowly varying conventional telemetry signal. The design is vary novel.

该设备不但能传输特快波形信号，而且能传输缓变的常规遥测信号，设计方案新颖，是一种多用途的弹上遥测发射设备。

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Yet over time immigrants more than repay the extra short-term burden they impose on education, health and other budgets.

ECONOMIST: Immigration

Afshin Nabavi, head of trading at MKS Finance, said the rally is gaining extra strength from short covering.

FORBES: Gold Reclaims $1,600/Oz After Weak U.S. Jobs Number Ups Expectations For More Fed Easing

On the verge of a maiden double-hundred for his country, Bell picked out short extra-cover with a drive off Smith.

BBC: Ashes: Ian Bell and Tim Bresnan shine for England