比放射性

/ bǐ fàng shè xìng /

1
[核] Specific radioactivity
3． 比放射性 ( specific radioactivity ) 是指单位化学量标记物中所含的放射性强度，也可理解为每分子被标
2
[核] specific activity
... special nuclear material 特种核材料 specific activity 比放射性 specific energy imparted 比（授与）能量 ...
3
ratio radioactivity
... 放射化学纯度 (radiochemistry purity) 比放射性(ratio radioactivity) 免疫活性(immunity activity) ...

短语

1
遗憾的是，这种离子交换技术所捕获的非放射性铁离子比放射性钴离子还多得多。
Unfortunately, the ion-exchange technique traps many more non-radioactive iron ions than radioactive cobalt ones.
2
方法：通过降低标记抗原的比放射性，提高抗血清的浓度，改进曲线拟合方式等方法，扩大测定范围。
Methods the measurable range was broadened through: Lowering of the specific radioactivity of the labelled antigen, increasing the concentration of the anti-serum and improve the curve fitting method.
3
当反应堆内的水比通常情况下的放射性高得多，而且处于高压之下的话，反应堆的强烈冲击可能会成为一个更加严重的问题。
Backlash from the reactor is likely to be an even bigger problem when the water inside the reactor is much more radioactive than usual and is under extremely high pressure.

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