Perforated

例句:

• 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.
• The formula it is desired to evaluate would be communicated to the engine by two sets of perforated cards similar to those used in the Jacquard loom. 佚名. 神奇的知识之书.
• For small transactions the various provinces were using perforated zinc and brass cash, but for larger there was nothing but stamped ingots of silver. 赫伯特·乔治·威尔斯. 世界史纲.
• There were also flint implements and perforated sea-shells, used no doubt as ornaments. 赫伯特·乔治·威尔斯. 世界史纲.
• In Fig. 290 is seen a modern form of Jacquard loom, showing at the far end the chain of perforated cards. Edward W. Byrn. 十九世纪发明进展.
• The yarns, which are wound around bobbins, are drawn from them through perforated plates, these so placed that the yarns converge together and pass into a tube. 佚名. 神奇的知识之书.
• The perforated paper was prepared at the rate of twenty words per minute. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The result was his automatic Roman letter system, the basis for which included the above-named general principles of perforated transmission tape and electrochemical decomposition. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• When the transmitting instrument was in operation, the perforated tape was passed over the drum in continuous, progressive motion. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The hollows in which London and Paris lie are both perforated in many places by borings of this nature. 佚名. 神奇的知识之书.
• Each of these plates is built up, as shown in detail in Fig. 65, of lead strips corrugated and arranged in layers alternately with flat strips, within perforated leaden cases. Edward W. Byrn. 十九世纪发明进展.
• The perforated tubes into which the nickel active material is loaded are made of nickel-plated steel of high quality. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The verticals of the letters were perforated only four holes high, and the four rollers were arranged in pairs, one pair being slightly in advance of the other. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• A metal tube with a perforated lower end is driven down by hammers into the ground, and furnishes a quick and cheap source of water supply. Edward W. Byrn. 十九世纪发明进展.

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