41.   Unless there is a way of cleaning the ducts of oil along their full length, I think that the entire duct system must be replaced.

42.   When Communism collapsed, the East Germans found their system almost immediately replaced by another set of rules transplanted directly from a smug, know-it-all western Germany.

43.   A very dry air mass has replaced this system and suppressed the development of clouds and showers over our area.

44.   An evil system has been replaced by enlightened rule and, where there was oppression, there is now the most liberal constitution in the world.

45.   Among other things, North Korea needs fuel and raw materials to resume fertilizer production, seeds for double-cropping and irrigation equipment to replace antiquated systems.

46.   Alvarado has proposed that the ministry appoint school principals from a list of nominees, replacing the system in which teachers, parents and students elected their principals.

47.   He said his office has encouraged local jurisdictions to replace punch card systems.

48.   It replaces a system that lets oil companies set arbitrary values at the wellhead with one that will peg the value to a market indicator.

49.   It replaced a system that relied on voluntary reports.

50.   It replaced a system that was based on voluntary reports.