Half life time, simulated by a dispersion model, can represent the exchange ability of an area more completely and objectively.

认为以水质模型模拟半交换时间研究海域的水交换能力更全面、客观。

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Conclusion the expressional intensity of COX-2 in ovarian cancer in combination with the half life time of CA125 might predict drug resistance in ovarian cancer.

结论COX - 2在卵巢癌中的表达强度与CA125半衰期的联合判断可以预测卵巢癌的耐药。

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Though he'd spent half his life with Pam, he never really took the time to know her.

虽然他人生的一半是和蟠一起度过的，他从没有真的花时间来了解她。

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It has a half-life of approximately three years at which time it stops decaying.

它生命的一半是三年,在三年的时候，它就停止衰亡。

麻省理工公开课 - 固态化学导论课程节选

Its half-life the time taken for half the radioactive atoms in a sample to decay is 109 minutes, compared with two minutes for oxygen-15, ten minutes for nitrogen-13 and 20 minutes for carbon-11.

ECONOMIST: Case history: The power of positrons | The

Bradford, who had Sam Burgess sin-binned after 32 minutes, finally came to life after half-time.

BBC: Bradford 24-10 Wakefield

The introduction of Sylvan Ebanks-Blake and Kightly at half-time breathed new life into the home side as rain began to fall in the Black Country.

BBC: Wolves 0-1 Portsmouth