0 a type of rock music with a strong beat in which drums and electric guitars are played very loudly
1 a type of rock music (= popular music) with a strong beat in which drums and electric guitars are played very loudly
Mining hard rock instead of coal also greatly increases the risk of machine damage.
Chapter 6 covers 'hard rock' techniques with emphasis on thin sections, but like nearly all others it is too concise to help with applications to ceramics, a non-trivial subject.
In most heavy metal and hard rock, this ambiguity was not played up to a large degree, with the modality usually being firmly established through context.
This tension appeared even before 1881, however, beginning in 1874 when most of the upper layers of earth had been sifted through, and now, lying beneath, was hard rock.
Three principal types of formation are under consideration—hard rock, clay and salt.
Others are found in hard rock and have to be worked by mining methods that are relatively high cost.
There is a future for hard rock mining in my county.
Radiation-induced lung cancers have been reported in uranium and hard rock miners for a long time.