推荐回答（1个）
. In statistics it is customary to refer to any process of observation as an experiment.
在统计学上，通常将任何观察过程称之为实验。
If an event definitely cannot occur upon realization of the set of conditions it is called impossible.
如果某一事件在实现既定条件之后绝对不会发生，就称为不可能事件。
In the case of ideal operational amplifier, circuit analysis was simplified by the ideal summing point restraints of zero voltage and zero current at the inverting input.
对于理想的运算放大器而言，通过倒相输入处零电压和零电流的理想求和点限制，可以简化电路分析过程。
Microwaves are potentially hazardous because of their heating effect. The effect may not be felt until damage has already been done because the heating may be internal whereas our body is designed to warn us about externally applied heat.
微波因其热效应而具有潜在危险。这种热效应可能在产生伤害之前不易感觉到，因为这是一种内部加热过程，而我们的身体只会对外部施加的热量发出警告。
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