When Zhu was thinking about it, suddenly, some piece of paper and fading leaves by the porch changed to be the butterflys and flew to the moon.

小柱这样一想，门廊上的几片碎纸，还有枯树叶，忽然都一闪一闪地变成了白色和淡褐色的蝴蝶，掠过树梢，飞去了。

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This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.

该文研究在频率选择性瑞利衰落信道中MC-CDMA系统的盲空时干扰抑制。

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In this paper, the theory of Strong tracking filtering (STF) is applied in the object prediction of autonomous robots to avoid the disadvantages of other methods by introducing fading factors.

本文提出将强跟踪滤波理论应用于全自主机器人目标预测，通过引入渐消因子，克服了其它目标预测方法的缺点。

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But as David Autor, an economist at the Massachusetts Institute of Technology, points out in a new paper on labour market polarisation, fading union power has been more the effect than the cause of occupational shifts.

ECONOMIST: The middle-class task- force