Ore

例句:

• In mining there are stamp mills, ore crushers, separators, concentrators, and amalgamators. Edward W. Byrn. 十九世纪发明进展.
• The wanderings led to the old ore-milling plant at Edison, now practically a mass of deserted buildings all going to decay. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• So I and the vice-president of the company, Mr. Mallory, crowded through the manhole to see why the ore would not come down. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• He lectured bef ore the Dublin Society in 1810, and again in the following year; on the occasion of his second visit receiving the degree of LL . 李贝. 西洋科学史.
• At another time, I had a briquetting machine for briquetting iron ore. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• During the progress of the ore-milling work at Edison, it became desirable to carry on a certain operation by some special machinery. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Charcoal in the furnace being well ignited, ore and charcoal resting on the tray are alternately raked into the furnace. Edward W. Byrn. 十九世纪发明进展.
• It was his opinion that it was cheaper to quarry and concentrate lean ore in a big way than to attempt to mine, under adverse circumstances, limited bodies of high-grade ore. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The coal, coke, ore, etc. 佚名. 神奇的知识之书.
• Fire melts ore and allows of the forging of iron, as in the blacksmith's shop, and of the fashioning of innumerable objects serviceable to man. 伯莎M.克拉克. 科学通论.
• In the story of the ore-milling work, it has been noted that the plant was shut down owing to the competition of the cheap ore from the Mesaba Range. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Many forms of ore washing machines have been invented to treat the ore after it has been reduced to powder. 威廉·亨利·杜利特. 世纪发明.
• In India, where zinc and copper ore occur together, brass (which is an alloy of the two metals) was similarly hit upon. 赫伯特·乔治·威尔斯. 世界史纲.
• This ore could be excavated very cheaply by means of improved mining facilities, and transported at low cost to lake ports. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• If the earth is at present magnetical, in virtue of the masses of iron ore contained in it, might not some ages pass before it had magnetic polarity? 本杰明·富兰克林. 富兰克林自传.
• Valuable metallic ores, such as those of gold, platinum, tin, copper and iron, often occur in the form of sand or mixed with that substance. 佚名. 神奇的知识之书.
• This process is best adapted to what are known as free milling or porous ores, where the gold is free and very fine and is attracted readily by mercury. 威廉·亨利·杜利特. 世纪发明.
• In the treatment of iron ores, and especially those of low grade, the magnetic concentrator is an interesting and striking departure. Edward W. Byrn. 十九世纪发明进展.
• Some chemical and other processes for reducing ores have been referred to in the Chapter on Metallurgy. 威廉·亨利·杜利特. 世纪发明.
• For many years it had been a much-discussed question how to make these ores available for transportation to distant furnaces. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Many attempts had been made in by-gone days to concentrate the iron in such ores by water processes, but with only a partial degree of success. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• By the cyanide process, in which cyanide of potassium is used as a solvent for the gold, low-grade ores can be profitably worked. 佚名. 神奇的知识之书.
• Granite is not rich in mineral ores. 佚名. 神奇的知识之书.
• Cur ie examined at the same time the salts of uranium and a number of uranium ores. 李贝. 西洋科学史.
• The try everything spirit of Edison's method is well illustrated in this early period by a series of about sixteen hundred resistance tests of various ores, minerals, earths, etc. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The chief of machines with _ores_ is the _ore mill_, which not only breaks up the ore but grinds or pulverises it. 威廉·亨利·杜利特. 世纪发明.
• This crusher consists of two ponderous upright jaws, one fixed and the other movable, between which the stones or ores to be crushed are fed. 威廉·亨利·杜利特. 世纪发明.
• Iron, which seems to have been first reduced from its ores by the Hittites, was, to begin with, a rare and much-desired substance. 赫伯特·乔治·威尔斯. 世界史纲.
• Seventeen different methods and devices for separating magnetic ores. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• As to gold, silver and lead, they doubtless were found first in their native state and mixed with other ores and were hammered into the desired shapes with the hardest stone implements. 威廉·亨利·杜利特. 世纪发明.

编辑:普鲁登斯