(v.) To bore through; to pierce through with a pointed
instrument; to make a hole or holes through by boring or piercing; to
pierce or penetrate the surface of.
(a.) Alt. of Perforated
安托万整理
双语例句
An expert clerk could perforate such a tape at the rate of fifty to sixty words per minute. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
A cylindrical tube with a perforated end contained the liquid. 佚名.神奇的知识之书.
The wet sheets of rubber are cut in square pieces, placed on perforated tin pans and loaded into the dryer, which will hold about eight hundred pounds of rubber. 佚名.神奇的知识之书.
The precipice on the opposite side of the canyon is well perforated with the small holes they dug in the rock to live in. 马克·吐温.傻子出国记.
To this end the burner portion through which the wick passed was perforated at its base to create a proper draft, and later the cap over the base was also perforated. 威廉·亨利·杜利特.世纪发明.
Instead of punching Morse characters in the transmission tape however, it was perforated with a series of small round holes forming Roman letters. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
The perforated strips were prepared in thirty minutes by ten persons, and duplicated by nine copyists. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In operation the perforated tape is placed on the transmission drum, and the chemically prepared tape on the receiving drum. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
It involved mechanical complications that seemed to be insurmountable, and up to the time Edison invented his perforating machine no really good method was available. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In practice, there was employed such a number of perforating machines as the exigencies of business demanded. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
This was accomplished by making a chain of articulated cards, like a slatted belt, and perforating these cards with varying arrangements of holes. Edward W. Byrn.十九世纪发明进展.