bbd delay unitchronotroncountdown timerdelay timerdelayerretarderselftimertime delay devicetime delay unit延时: delayed; deferred; time-laps ...器: implement; utensil; ware沉雷延时器: mine sinking delayed device电化延时器: electrochemical delayed device电解延时器: electrolytic time delay device下载手机词典可随时随地查词查翻译