Radio carbon dating puts the origin of the shroud between 1260 C. E. and 1390 C. E., consistent with the theory that it was a forgery.

根据碳同位素测定，该亚麻布产于1260年至1390年之间，不过许多人坚持认为这是伪造的。

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According to the tenets of education psychology and sociology, the essay analyses the origin and consequences for the P. e. teachers? Role imbalance.

本文运用教育学、心理学、社会学原理，对体育教师角色失调的根源、后果进行了分析。

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Samples should be taken regularly, but the frequency should depend upon the origin and the usage of the water, e. g. more frequent from private supplies than from public supplies.

要定期取样，但是取样频率要根据水的水源和使用情况而定。例如：由私人供应的水取样频率要多于公共供水。

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The problem arises because the SPF system only works out if e-mail comes from its claimed place of origin.

BBC: NEWS | Technology | Spammers exploit anti-spam trap