| 41. | A . The white powder you see is undoubtedly efflorescence, a frequent problem on brick and masonry walls.
|
| 42. | A . You certainly have described the problem clearly, and the mason is right that it is efflorescence.
|
| 43. | A : The " deposits " are probably efflorescence _ a common problem in old masonry walls.
|
| 44. | In that efflorescence, African-American culture and North American modernism merged in a uniquely urbane and stylish blend.
|
| 45. | In this efflorescence of life, some eukaryotic cells combined to form multicelled organisms and then began to diversify dramatically.
|
| 46. | Doing so, he says, would offer stable, low interest rates, and help lead to an economic efflorescence.
|
| 47. | Six years into what has been declared the Decade of the Brain, the great efflorescence of understanding sometimes seems overwhelming.
|
| 48. | You can scrub efflorescence off masonry with a solution of phosphoric acid ( one part phosphoric acid to nine parts water.
|
| 49. | "' Efflorescence "'is the formation of a gritty deposit, commonly white, on the surface.
|
| 50. | Among other things the crumbling cement mortar lining of the joints was changed to a more modern material to avoid efflorescence.
|
