Прочтите текст и выполните следующие за ним упражнения2. Используйте следующие слова и выражения в собственных предложениях: Drawing, to measure, to involve, mating part, accuracy, slide gauges, vernier calipers, depth gauges, clearance gauges, micrometer, inside calipers, to graduate, internal diameters, to slide, adjusting screws, lock nut, tapped hole. 3. Переведите следующие группы слов, обращая внимание на суффиксы: To measure, measuring, measurable, measured, measurement; to compare, comparative, compared, comparison; to signify, significant, significance; to depend, depending, dependence, dependent; to graduate, graduated, graduation; accuracy, accurate; precise, precision; general, generally, generation. 4. Подберите синонимы: To place, inside, outside, to be similar, according to, with reference to. 5. Заполните пропуски предлогами in accordance with, by means of, within for, to, of: 1. Machine parts should be manufactured … their respective drawing. 2. … a micrometer it is possible to make measurements to a very high degree of accuracy. 3. Calipers are used for measurements to … 0.18 mm. 4. Measuring tools should be chosen … the machine part to be measured. 5. He micrometer is an instrument … measuring directly … thousandths, and estimating to quarter thousandths … an inch, … its range. 6. Переведите следующие предложения, обращая внимание на значение выделенных слов: 1.The principle involved in the operation of the micrometer is explained in technical text-books. 2. The instruction on the use of this dial indicator is rather involved. 3. These drawings and their explanations are given to illustrate the principles involved. 4. Different kinds of instruments are used tomeasure holes of considerable depth. 5. A millimetre is a measure of length. 6. Steel plates usually vary be sixteenths of an inch. 7. By dividing the load required to break the specimen by its area, the ultimate tensile strength of material is obtained. 8. By accuracy of from is meant not only the exact duplication of irregular profiles, but also the accuracy of from embodied in squares, true cylinders, cones, etc. 7. (a) Переведите текст с помощью словаря: A range of optical instruments for measuring surface finish, which are relatively inexpensive and of very robust design, and afford the advantage that they can readily be applied under both workshop and inspection-room conditions, is being produced by many plants. Known as optical devices, these units are of modern designs. The portable device is intended for checking the relatively coarse finishes produced by planing, turning, and milling.With this device a beam of light is directed past a straight, opaque edge, and through a lens at an angle of 45 to the work surface, and the line of intersection is observed at an angle of 90 to the light beam, through the eyepiece of the microscope. (b) Задайте три вопроса к тексту и ответьте на них. 8. Используя данные слова и выражения, объясните принцип работы нижней измерительной шкалы штангенциркуля: Vernier calipers, to be used, to measure, external and internal sizes, a part, to consist of, steel scale, four jaws, two jaws, to be attached, the frame, to slide, the scale, the first two jaws, to be used, measuring external surfaces, the other two jaws, measuring internal surfaces, the depth, to be measured, a spindle. 9. О твечая на вопросы, объясните принцип действия микрометра: 1. What is a micrometer? 2. What is the function of the graduated thimble of the micrometer? 3. What is the scale on the micrometer barrel used for? 4. Where is the part placed for measurement? 5. How is the part pressed to the anvil and how is the micrometer reading taken?
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