Some people sit with their elbows planted on a firm surface, holding their head in their hands.
A firm surface, as the understatement goes, provides a better test for élite racers and bears up better under the erosive effect of their powerful carving turns.
The safest spot for an infant to sleep is on a firm surface such as a crib or bassinet without any soft bedding, bumpers or pillows.
Assuming the cow poops on a firm surface such as a pasture or a barn floor, the poop will hit the ground and spread into a disklike shape.
The set of a marble arch and runway floor at 3.1 Phillip Lim was a firm surface on which the designer could draw his square geometric shapes.
Using a rocker shoe, the palmar angle increased on a firm surface (0.6 ± 0.3°) and decreased on a deformable surface (0.8 ± 0.3°).
Pressure distribution showed wedges and studs to cause an increased pressure load on both the toe and the heels on a firm surface.
After weeks of incessant rain in Britain, this was a long-awaited opportunity for Bath to play with a dry ball on a firm surface again, albeit against star-studded opposition.
Gloucester slipped to two off the bottom, above Wasps, and a concern for Davies will be that his team were a distant second even though conditions should have been in their favour: dry and sunny with a firm surface.
Heavy snowfalls can severely hinder transporation in variable moderate climates but provides a firm surface for travel in remote Arctic, Antarctic, and mountainous areas, using traditional dogsleds or snowshoes or modern snowmobiles.
In addition to their twining character, some tendrils produce terminal enlargements that, on contact with a firm surface, flatten and secrete an adhesive, firmly cementing the tendril to the substrate.
