定义

• The early definitions stressed a blend of biological and chemical control .
  早期的定义强调生物和化学防治结合。
• The flux through the wall of the vortex tube is zero by its definition .
  根据涡管定义，穿过涡管管壁的涡量为零。
• The condition number, defined below, is changed by scaling the matrix .
  调整矩阵的比例就改变了下面定义的条件数。
• The precise definition of the angular momentum of a body is complicated .
  要给物体的角动量下精确的定义是困难的。
• He incorrectly used the product of velocity and weight to define momentum .
  他错误地将动量定义为速度与重量的乘积。
• The above definition is set in roman ; this example is in italics .
  上面的定义用的是罗马体排印的，这个例句是斜体。
• Each of these may be computed from the definition of work in eq. (7-1) .
  每个力的功都可由功的定义式（7-1）来计算。
• It is easy to find an alternative characterization of upper semicontinuity .
  上半连续的一个替补定义是很容易找出的。
• The opening definitions are framed in terms of concepts that are not defined .
  开头几个定义是用未经定义的概念来讲的。