angular grainの例文

• It is composed mainly of rounded grains but sub-angular grains also occur.
• Spherical grains tend to migrate to the surface more than do angular grains.
• The basal conglomerates are made up of hard sandstone which contains angular grains.
• They wear faster and cut slower, but their angular grains shear through steel for a finer finish with less heat.
• The conglomerate is typically a medium to fine grained brown to buff sandstone consisting of angular to sub angular grains with scattered flakes of mica; it makes a good building stone.
• They were also called patent notes because they were registered with the U . S . Patent Office in the absence of effective copyright protection and buckwheat notes, for their perceived resemblance to the angular grain.
• The term gritstone ( usually capitalised by British rock climbers ) describes any sandstone composed of coarse angular grains, and specifically refers to such sandstones within the Peak District, Pennines and neighbouring areas of Northern England.