pair

• This definition will be used for any pair of operators .
  这个定义适用于任意一对算符。
• Poles always exist in pairs .
  磁极总是成对存在的。
• Pairs of such reflecting surfaces are known as etalons .
  这样一对反射面通常称为标准具。
• Bounderby and mrs. sparsit were a curious pair .
  庞得贝和斯巴塞太太这两个可说无独有偶。
• The interior pairs of cables will be supported on saddles .
  当中的各对拉索支承在鞍座上。
• I can use every pair of hands .
  我正用得着人呢。
• The endosternites are typically formed of a pair of apophyses .
  腹内骨是由一对骨突构成。
• Li ying paired off with liu hua in a tennis doubles match .
  李英在网球双打中与刘华搭档。
• This pair of boots let in water .
  这只靴子漏水。
• Most galaxies occur in pairs or in small multiple groups .
  大多数星系成双或几个成一小群。