一个8岁男孩在进行法乐氏四联症矫治手术时，心脏发生了完全性传导阻滞。
An 8-year-old boy, operated on for total correction of Fallot's tetralogy, developed complete heart-block on the operating table.
并对随着基础频率心房起搏的增加房室结呈递减性传导是频率滤过作用的基础等生理现象做出解释。
With the foundation and increase the frequency of atrial pacing was reduced atrioventricular node conduction is based on the frequency filtering effect of other physiological phenomena to explain.
然而，银行仍然是整个经济链条中的薄弱环节，它们本身很脆弱，同时可以把这种脆弱性传导给周围环节。
Banks, however, remain the weak link in the chain, fragile themselves and able to generate fragility around them.
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