小于

• We move about, even in jet travel, at speeds far less than the speed of light .
  我们即使是乘飞机旅行，运动的速率也远小于光速。
• The lowermost capillary fringe is a zone in which the pressure is less than atmospheric .
  最下面的那个毛细水带中的压力小于大气压。
• It will arrive at the earth with less frequency than a brother photon emitted on the earth .
  它到达地球时的频率小于在地球上发射的同种光子的频率。
• When flow velocity decreases below the corresponding incipient motion condition, no sediment movement occurs .
  当水流速度小于相应的起始运动时，将无泥沙运动。
• Call a set of integers fat if each of its elements is at least as large as its cardinality .
  称一个整数的集合为饱和的，如果它的每一个元素都至少不小于其基数。
• The maximum load on a bearing should always be smaller than the relief load in order to avoid scuffing .
  为了避免划伤，轴承上的最大负荷应该总是小于其卸载负荷。
• The daily and yearly temperature oscillations die away at depths less than 1m and 30m respectively .
  温度日变化波及的深度小于1米，而温度年变化影响的深度约30米。
• In most machines friction consumes effort , with the result that less work is got out than is put in .
  在大多数机器中，摩擦要消耗功，以致造成输出的功要小于输入的功。
• Ice crystals begin to deform measurably under a unidirectional pressure of slightly less than one atmosphere .
  在略小于一个单向大气压的压力下，冰晶就产生某种程度的变形。