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12
Ore closed to the surface ground is mined by open pit techniques. Waste
rock is then separated from ore by loading and trucked to the waste dump in-
stead of the concentrator. Ore bodies contained in rock deeply below the surface
are exploited by underground mining, and here techniques are more complex.
The mining method adapts to the ore body and rock conditions, shape, di-
mensions, strength and stability. The task is maximum recovery and at the same
time to avoid waste rock. Mining method aims for economical and efficient ore
recovery, also keeping safe working conditions.
Задания
1. Переведите текст на русский язык.
2. Ответьте на вопросы к тексту:
a) What does bedrock contain?
b) What does mining method adapt to?
c) What is the task of mining?
3. Переведите на английский язык следующие предложения:
a) Пустая порода разубоживает руду и снижает ее качество.
b) Порода, содержащая рудное тело, называется вмещающей породой.
c) При открытой разработке пустую
породу перевозят в отвал, а не на
обогатительную установку.
TEST № 6
Прочитайте текст и письменно выполните задания к нему.
Shaft
The mine’s shaft is a long, narrow vertical opening sinking into the earth.
The shaft is the access to underground levels, and the mine’s main artery for
anything going up and down. Down in mine, drifts and ramps build a network of
openings, which connect stopes and workplaces, allowing miners and equipment
to travel between workplace.
The shaft is the first component in the development programs for the deep
mine. The shaft shall be excavated to the depth of at least 500 m. The deep shaft
12 Ore closed to the surface ground is mined by open pit techniques. Waste rock is then separated from ore by loading and trucked to the waste dump in- stead of the concentrator. Ore bodies contained in rock deeply below the surface are exploited by underground mining, and here techniques are more complex. The mining method adapts to the ore body and rock conditions, shape, di- mensions, strength and stability. The task is maximum recovery and at the same time to avoid waste rock. Mining method aims for economical and efficient ore recovery, also keeping safe working conditions. Задания 1. Переведите текст на русский язык. 2. Ответьте на вопросы к тексту: a) What does bedrock contain? b) What does mining method adapt to? c) What is the task of mining? 3. Переведите на английский язык следующие предложения: a) Пустая порода разубоживает руду и снижает ее качество. b) Порода, содержащая рудное тело, называется вмещающей породой. c) При открытой разработке пустую породу перевозят в отвал, а не на обогатительную установку. TEST № 6 Прочитайте текст и письменно выполните задания к нему. Shaft The mine’s shaft is a long, narrow vertical opening sinking into the earth. The shaft is the access to underground levels, and the mine’s main artery for anything going up and down. Down in mine, drifts and ramps build a network of openings, which connect stopes and workplaces, allowing miners and equipment to travel between workplace. The shaft is the first component in the development programs for the deep mine. The shaft shall be excavated to the depth of at least 500 m. The deep shaft
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