delay dial
常见例句
- Introduction was made to the composition and working principle of a power-off time delay relay which adopts CMOS digital circuit, digital dial disc for switch setting and without auxiliary power.
介紹了一種採用CMOS數字電路、數字撥磐開關整定、無輔助電源的斷電延時繼電器的組成及工作原理。 返回 delay dial