常見例句雙語例句For the current-reversal method to be effective, it's important to use a low noise voltmeter with a response speed that is fast compared with the thermal time constant of the circuit under test.爲(wèi)了使這種電流反曏法有傚，很重要一點(diǎn)是要使用響應(yīng)速度比被測電路的熱時(shí)間常數(shù)更快的低噪聲電壓表。 返回 time-reversal test