This sets in motion a train of wheels carrying the hands over the dials which mark the quantity of gas consumed. 佚名.神奇的知识之书.
By this time great astronomers like Tycho Brahe and Valherius had divided the time-recording dials into minutes and seconds. 威廉·亨利·杜利特.世纪发明.
This was the first calculating machine made with dials. 佚名.神奇的知识之书.
Mr. Callahan removed the two dials, and, substituting type wheels, turned the movements face to face, so that each type wheel could imprint its characters upon a paper tape in two lines. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
A third took the time from two clock dials when the observer gave the signal, and the exact moment of o bservation was also recorded by student number two. 李贝.西洋科学史.
And in Rome the sun-dials, the clepsydras and the hour-glass were used for the same purpose, and more generally than in Greece, to regulate the hours of business and pleasure. 威廉·亨利·杜利特.世纪发明.