51.   In addition, the report said, Lewis was designed to operate by itself for long periods in a safe mode that required minimal ground control.

52.   In general, china-matching services in England do not have shops or showrooms but operate by mail order.

53.   In an unexceptional fight, a well-trained boxer can operate almost by rote.

54.   In both cases Miller helped create imaginary environments that operate by their own rules and logic.

55.   In fact, Levine says the overhaul base in Kansas City could receive more work than it has if operated by American.

56.   In the ordered society in which we choose to live, we operate by a code of conduct.

57.   Individual presidents will need unqualified support from their trustees as they confront rogue athletic directors who operate by their own rules.

58.   Instead, the handset operates by radio wave, like a cellular phone, but one for use only in a fixed location.

59.   In theory, they could enroll in the standard Medicare program, in health maintenance organizations or in health plans owned and operated by doctors and hospitals.

60.   It does not yet operate by the rule of law.