该产品的电阻值在其有效使用期限内，阻值是逐渐变大。
The resistance of elements increases gradually during their useful life.
该发生器是由以两个电阻构成的分压器形成的，其阻值的公差范围很大。 本发明可用于AMPS移动通信网络之中。
A generator is constituted of a potentiometer formed of two resistors where resistance values having large permission values are decided and it is applied to a cellular AMPS network and the like.
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