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The epidemiological evidence for a causal association between cancer and rf energy is weak and limited .

流行病学提供的关于癌症和射频能量之间因果关系的证据不可靠，并且有局限性。

Animal studies have provided no consistent evidence that exposure to rf energy at nonthermal intensities causes or promotes cancer .

动物研究也没有一致的证据显示，暴露在非热强度的射频能量下会导致或者促进癌症的发生。

Automatic registration process , and can now register rf account .

自动注册程序，现在还可以注册rf账号。

The longitudinal time-slice is realized by rf deflecting cavity .

而测量纵向切片的方法通过高频偏转腔实现。

Whilst the rf and us provided some figures for the new strategic arms reduction treaty ( new start ) agreement in 2011 , these still only provide an outline rather than a complete declaration .

虽然俄罗斯和美国在2011年的新削减战略武器条约（新start）协定中提供了一些数字，但这些数字只提供了概要而非完整声明。