家用定时钟最近，德国的专家们为家庭主妇设计了一种家用定时钟，它既可用于厨房电炉的定时上，同时还可用于电冰箱、洗衣机和收音机上。该定时钟可根据你所需要的时间来按通和切断各种设备的电路，从而达到定时的目的。编译：张肇富资料选自：俄罗斯《青年与技术》ＮＯ．... Household clocks Recently, German experts have designed a home-use clock for housewives that can be used both in time in kitchen electric stoves and in refrigerators, washing machines and radios. The timer can be based on the time you need to press and cut off the circuit of various devices, so as to achieve the purpose of timing. Compilation: Zhang Zhaofu Information from: Russia “Youth and Technology” NO. ...