roughening वाक्य

They wound up " pre-oxidizing " the metal pin, roughening its surface and helping it adhere to the glass.
The initial symptoms sometimes include the appearance of pale, numb spots, followed by a roughening of the skin and pinhead-size blisters.
Roughening seas continued to pound beaches from New Jersey to North Carolina on Monday, the first incursion in a possible aquatic assault from Hurricane Felix.
On its descent into the low-point of the wave ( the trough ), the air touches the surface of the ocean, roughening the water.
A second shorter ridge descends steadily to the south west over gradually roughening ground, until after three quarters of a mile a rock outcrop is thrust up.

Attempts have been made to make simple cells self-depolarizing by roughening the surface of the copper plate to facilitate the detachment of hydrogen bubbles with little success.
He worked from " light to dark ", only roughening the plate where he wanted to produce tones, using " roulettes " or wheels with sharp teeth.
Brown saw limited action at first and missed about two weeks in late February with chondromalacia ( a roughening of the cartilage under the kneecap ) in his left knee.
While finishing a material often means polishing it to gain a smooth, reflective surface, the process can also involve roughening as in satin, matte or beaded finishes.
Other possibilities include increasing the number of on-site attendants and supervisors; roughening certain areas of the fountain to reduce the chance of falls and putting in new drains.