But, it is inherent in the physics of the transistor, when it is used in this manner, that the output will vary by a known amount for a given change in temperature.
不过，当这么使用晶体管时，因为其固有物理属性，对于某一给定的温度改变其输出也会产生一个已知数量的变化。
Burettes are used to deliver a known amount of liquid.
滴定管是用来转移一种已知体积的液体的。
Burettes are used to deliver a known amount of liquid.
滴定管是用来转移一种已知体积的液体的。
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