Sentence examples for layer of hard from inspiring English sources

An upper layer of hard dolomite is underlain by softer layers of shale.

The remaining eighty per cent of the oil sands lie hundreds of feet down beneath a layer of hard rock.

Instead of percolating into the ice, snow meltwater refreezes onto the ice surface, forming a layer of hard, glassy ice.

Scales, if present, are structurally minute teeth, called dermal denticles, each consisting of a hollow cone of dentine surrounding a pulp cavity and covered externally by a layer of hard enamel-like substances called vitrodentine.

Adhesive wear of commercially pure titanium samples, coated with a nanocomposite layer of hard alpha alumina nanoparticles in titania based matrix, was analysed under standard wear tests.

The stamp design was based on a two layer stamp that uses a thick film of standard soft PDMS (Sylgard 184 PDMS) to support a thin stiff layer of hard PDMS [135].

The existence of a layer of hard boulders up to 1 m in size within the soft sediments of the Holocene Llobregat delta in the SW of Barcelona city caused the damage and stoppage of the EPB-type tunnel boring machine that excavated the subway L10 line.

In the sub-Arctic climate of the Klondike, a layer of hard permafrost lay only 6 feet below the surface.

To replicate ridges, a composite PDMS mold consisting of a thin layer of hard PDMS with relief features and a thick slab of soft PDMS was prepared.

September 16 , 1924New York City, New York August 12, 2014 New York City, New York Lauren Bacall, original name Betty Joan Perske (born September 16 , 1924 New York, New York, U.S. died August 12 , 2014 New York, New York) American motion-picture and stage actress known for her portrayals of provocative women who hid their soft core underneath a layer of hard-edged pragmatism.

The shells are made up of alternating layers of hard and soft material.