Poles

例句:

• If a close coil of wire is suspended between the poles of a strong horseshoe magnet, it will not assume any characteristic position but will remain wherever placed. 伯莎M.克拉克. 科学通论.
• The poles of the electromagnet in the local circuit are hollowed out and filled up with carbon disks or powdered plumbago. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• It crosses thirteen states; it is carried on 130,000 poles. 佚名. 神奇的知识之书.
• The poles were two hundred feet apart and could barely hold up a wash-line. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• But I reflected that Yarmouth might be situated at one of the poles; which would account for it. 查尔斯·狄更斯. 大卫·科波菲尔.
• Inside that bar there are several permanent magnets, packed on each side of the ends of the coil of wire, the poles of those on one side being the opposite of those on the other. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• Their dwellings are made of bark, skins and mattings of their own making, stretched on poles fixed in the ground. 佚名. 神奇的知识之书.
• Such, in fact, was the success of the new method that the city compelled at length the removal of all telegraph poles. 佚名. 神奇的知识之书.
• The lines thus marked, if produced, will form meridians, all coming together at the poles. 李贝. 西洋科学史.
• The men, attached to brigades or divisions, would all commence at once raising the wires with their telegraph poles. 尤利西斯·格兰特. U．S．格兰特的个人回忆录.
• By rotation of a coil (armature) within a magnetic field, that is, between the poles of a magnet, current is obtained. 伯莎M.克拉克. 科学通论.
• The principle of practically all galvanometers is as follows:-- A closely wound coil of fine wire free to rotate is suspended as in Figure 233 between the poles of a strong magnet. 伯莎M.克拉克. 科学通论.
• The natives build their huts out of small poles covered with palm thatch and live in little colonies while the rubber harvest is going on. 佚名. 神奇的知识之书.
• A single cell of a Daniell's battery, _a_, is connected by wires from its positive and negative poles, with metal rods placed across the decomposition cell, _b_. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• Its attractive power draws the armature toward the poles. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• It was in that year that Ampère discovered that magnetism is the circulation of currents of electricity at right angles to the axis of the needle or bar joining the two poles of the magnet. 威廉·亨利·杜利特. 世纪发明.
• Poland was ravaged, and a mixed army of Poles and Germans was annihilated at the battle of Liegnitz in Lower Silesia in 1241. 赫伯特·乔治·威尔斯. 世界史纲.
• Glaciers spread from the poles towards the equator, until England to the Thames was covered in ice. 赫伯特·乔治·威尔斯. 世界史纲.
• All magnets have two poles, north and south. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The poles unite, the zones agree, The tongues of striving cease; As on the Sea of Galilee, The Christ is whispering, Peace! Edward W. Byrn. 十九世纪发明进展.
• For the fun of it we bring our things in these bags, wear the old hats, use poles to climb the hill, and play pilgrims, as we used to do years ago. 路易莎·梅·奥尔科特. 小妇人.
• As long as the coil rotates between the poles of the magnet, current flows. 伯莎M.克拉克. 科学通论.
• The points of attraction at the two ends are called the poles of the magnet. 伯莎M.克拉克. 科学通论.
• If the current is sent through the helix in the opposite direction, the north and south poles exchange places. 伯莎M.克拉克. 科学通论.
• He has with him Frenchmen and Poles, Italians and children of the Rhine, six hundred thousand strong. 夏洛蒂·勃朗特. 雪莉.
• Between the poles of a strong magnet suspend a movable coil which is connected with a sensitive galvanometer (Fig. 237). 伯莎M.克拉克. 科学通论.
• There is but one alternative--to cleave to him as if I were a part of him, or to be sundered from him wide as the two poles of a sphere. 夏洛蒂·勃朗特. 雪莉.
• The two poles are both painted the same color, and to the audience both appear to be the same. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Wires connect these rods to the rods on the side of the wall, and to the opposite poles of the dynamo. Edward W. Byrn. 十九世纪发明进展.
• But the patriotism and republican passion of the Poles grew stronger and clearer with suppression. 赫伯特·乔治·威尔斯. 世界史纲.

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