Lenses

例句:

• This, rising above the water, and provided with reflecting lenses, enabled the steersman to discover the surface conditions and see any near vessel or other object. 佚名. 神奇的知识之书.
• He noticed that by holding two of the lenses in a certain position he obtained a large and inverted view of whatever he looked at. 鲁伯特·萨金特·荷兰. 历史性发明.
• By using combinations of two or more lenses of various kinds, it is possible to have an image of almost any desired size, and in practically any desired position. 伯莎M.克拉克. 科学通论.
• The inventions and improvements in optical instruments gave rise to great advances in the making of lenses, based on scientific principles, and not resting alone on hard work and experience. 威廉·亨利·杜利特. 世纪发明.
• Many familiar illustrations of lenses, or curved refracting surfaces, and their work, are known to all of us. 伯莎M.克拉克. 科学通论.
• Another experimenter, Dumont, made use of a single large plate and a great number of lenses which were successively exposed. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Achromatic and other lenses were known, and the microscope, the telescope and spectacles. 威廉·亨利·杜利特. 世纪发明.
• What is known as the modern refracting telescope is based upon a different combination of lenses than that used by Galileo. 鲁伯特·萨金特·荷兰. 历史性发明.
• Such lenses are called convex or converging lenses. 伯莎M.克拉克. 科学通论.
• The various types of lenses are shown in Figure 71. 伯莎M.克拉克. 科学通论.
• The last three types, called concave lenses, scatter parallel rays so that they do not come to a focus, but diverge widely after passage through the lens. 伯莎M.克拉克. 科学通论.
• By a nice arrangement of mirror and lenses attached to a firearm the same object may be accomplished. 威廉·亨利·杜利特. 世纪发明.
• Their lenses for telescopes and microscopes and photographic cameras, and glass and prisms, and for all chemical and other scientific work, have a worldwide reputation. 威廉·亨利·杜利特. 世纪发明.
• The image, magnified by the lenses of the electric lamp, could thus be distinctly seen without being too brilliant to dazzle the eyes. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• Kepler studied Galileo’s instrument, and then designed one consisting of two convex lenses. 鲁伯特·萨金特·荷兰. 历史性发明.
• He had also now learned to make the lenses adjustable, by fixing the tubes that held them so that they could be drawn out of, or pushed into the main tube of the telescope. 鲁伯特·萨金特·荷兰. 历史性发明.
• The story goes that an apprentice of Hans Lipperhey, an optician of Middleburg, in Holland, was, one day in October, 1608, playing with some spectacle lenses in his master’s shop. 鲁伯特·萨金特·荷兰. 历史性发明.
• He told Master Hans about this, and the optician fixed two lenses in a tube, and looking at the weathercock on a neighboring steeple saw that it seemed much nearer and to be upside down. 鲁伯特·萨金特·荷兰. 历史性发明.
• It consists of two great lenses, each nine feet in diameter, between which, in their focus, is placed a 9,000 candle power arc light. Edward W. Byrn. 十九世纪发明进展.
• In the compound two or more lenses are so arranged that the image formed by one is magnified by the others, and viewed as if it were the object itself. Edward W. Byrn. 十九世纪发明进展.
• By means of other lenses and prisms an image of the external object is thus made visible to those within the submarine. 佚名. 神奇的知识之书.
• Lenses are very similar to prisms; indeed, two prisms placed as in Figure 69, and rounded off, would make a very good convex lens. 伯莎M.克拉克. 科学通论.
• But Sir Charles Wheaton in 1838 constructed the first instrument, and in 1849 Brewster introduced the present form of lenticular lenses. 威廉·亨利·杜利特. 世纪发明.

校对:沃尔多