I'll take a quartz watch to replace my old mechanical one. 我就买一块石英表,代替我的老机械表吧。
Where the source of energy in a mechanical watch is the spring, in a quartz watch it is a miniature battery which lasts for several years. 在机械表中,动力来自弹簧,而石英表中,动力来自小电池,可以用上几年。
In a quartz watch the oscillator is a quartz crystal, which has the property that it vibrates in the presence of an electric field. 在石英钟表中,振荡器是一块在电场中震动的石英水晶。