Corona voltmeter

corona [[kə'rəunə]]

n. 冠, 冠状物, 副冠, 根颈, 头顶, 牙冠, 檐板, 日冕, 月华, 日华, 电晕, 光圈\\n[计] 电晕, 冠

voltmeter

n. 伏特计\\n[化] 伏特计

I have good eyesight.

我的视力挺好。

Which one is heavier?

哪一个是较重的？

when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv

计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。