Hence it is proposed that the temperature and the density of electrons in a rich cluster and the Hubble constant H0 may be determined from the observations of the IR-background distortion.

因此，通过对畸变的观测，可以确定富星系团内电子的密度和温度以及哈勃常数h_0。

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Lawyers, accountants, management consultants and other professional-services grunts are drawn to London partly for the same reasons financial-services firms cluster there the global ubiquity of English and a time zone midway between the rich old world and emerging Asia.

ECONOMIST: The British economy��s best-kept secret