Главная страница Случайная страница
Разделы сайта
АвтомобилиАстрономияБиологияГеографияДом и садДругие языкиДругоеИнформатикаИсторияКультураЛитератураЛогикаМатематикаМедицинаМеталлургияМеханикаОбразованиеОхрана трудаПедагогикаПолитикаПравоПсихологияРелигияРиторикаСоциологияСпортСтроительствоТехнологияТуризмФизикаФилософияФинансыХимияЧерчениеЭкологияЭкономикаЭлектроника
Read and remember meanings of the words. plant n механическое оборудование, парк машин
|
|
plant n механическое оборудование, парк машин
leveling n планировка, планировочные работы
site n строительная площадка
excavation n земляные работы
to plane off состругивать, снимать слой
bucket n ковш
trenching рытье траншей
wheel n ротор, колесо
blade n отвал, нож
shovel n прямая лопата
to power v приводить в действие
earth-moving machine землеройная машина
attachments сменное оборудование
dragline n драглайн
backacter, backhoe обратная лопата
grab, clamshell грейфер
outrigger arms аутригеры
dipper arm рукоять ковша
jack n домкрат
slope n уклон, скат, откос
guides направляющие
discharge n разгрузка
track n гусеница
3. What would be the best title for this text?
· Earth-moving machinery
· Excavators
· Construction and road machines
· Technology of machine construction
Complete these sentences with the words and word combinations from the text.
1) There is a considerable variety of scrapers ____________________.
2) Some decades ago only rope-controlled excavators ______________.
3) A bulldozer represents __________________.
4) Independent movement of the outrigger arms provides for _____________.
5) Site preparation and excavation are ______________________.
6) In hydraulically operated backhoes hydraulic rams are ________.
Combine the incomplete sentences in group A with their endings in group B.
| A | B |
| 1. The best economy is achieved when an all-purpose earth-moving machine is designed… | a. … without a good deal of preliminary leveling the site. |
| 2. A scraper is simply a box made of sheet steel with an open mouth… | b…. the most fully mechanized of all the operations in building construction. |
| 3. Site preparation and leveling are… | c. … careful planning and efficient site organization. |
| 4. It is impossible to start on a construction job… | d. … capable of being converted to suit any class of work. |
| 5. The use of expensive mechanical plant requires… | e. … which is dragged along the surface of the ground until it is full. |
| 6. In some hydraulically operated excavators the revolving superstructure … | f. … the machine can turn within its own length. |
| 7. With extended telescopic boom … | g. … can be moved perpendicularly to the longitudinal axis of the machine in special guides. |
| 8. With separate hydraulic motors for each track… | h. … the excavator can dig deeper trenches and discharge the soil at greater heights. |
Match the words with the same meanings.
require fulfill
job work
preliminary demand
carry out not small
excavate dig
continuous preparatory
considerable enormous
huge endless
|
|