Sentence examples for hard and resistant from inspiring English sources

Silcrete is extremely hard and resistant to weathering and erosion but eventually weathers spheroidally to produce boulders and angular fragments.

In an alternating wet and dry climate, high areas become increasingly hard and resistant while low areas are subjected to greater erosion and solution.

On the one hand, its rootstock is notably hard and resistant to plant pathogens like peronospora; its grapes grow like a rash.

Summing up, physically strong, fit, able to work hard, and resistant females are possibly the best partners when it is necessary to struggle for survival.

These considerations highlight that cortical grafts are hard and resistant to vascular penetration but they are progressively weakened by degeneration before their complete incorporation and remain as admixtures of necrotic and viable bone for prolonged periods of time.

There they traffic in nutrients, processing the hard lignin and resistant woody tissues – five tonnes of this vegetable junk per hectare is dumped annually – and converting it into elements that trees and flowers can re-use.

This pioneering work sets the stage and serves as a catalyst for rapid and innovative advances in the development of new boride materials for numerous tool and hard coating applications, including bulk cutting tools, hard and erosion-resistant coatings, wear-resistant electrical switch contacts, and conductive thin films for MEMS.

As a result, the corrosion resistance ability of hydrophobic metallic Ni surface decreases, hard and corrosion resistant compact matrix is formed with non-conductive SiC particles.

"Silicon is light yet hard and highly resistant to corrosion," Mr. Norman said.

Coatings like TiN or TiAlN are well established as hard and wear resistant tool coatings.

To improve their superficial properties, they can be covered with a hard and wear resistant protective layer.