气泡

• There are two approaches to the question of the rise velocity of bubbles in a stagnant liquid .
  对于在静止液相中气泡的上升速度问题有两种处理方法。
• Spirit levels on the gyro may be used to determine whether the instrument has settled with a list .
  陀螺上的气泡水准仪可用以确定仪表的放置是否倾斜。
• With care, a bubble burst system is capable of producing a good uniformity for plates .
  如仔细加以处理，这种释放气泡系统可以保证底片得到很好的均匀性。
• A high-speed jet is formed in the bubble due to the convolution of the fluid on the boundary of the bubble .
  由于在气泡边缘上流体的回旋，在气泡中形成了高速射流。
• Very small bubbles can not survive very long, becoming dissolved in the surrounding liquid in a few seconds .
  非常小的气泡不能长久存在，几秒钟内就消失在周围液体中了。
• Times of this order are deduced directly by measuring the length of the particle track in a bubble chamber .
  这样量级的时间是通过测量粒子在气泡室中径迹长度直接得到的。
• At higher gas velocities the rising bubbles cause the observed churning, mixing, and flow of solids .
  在较高气速下，上升气泡就造成了所观察到的搅动、混合及固定颗粒的流动。
• If the burst duration is too long, or the gas pressure too high, the bubbles tend to collect and rise in columns .
  如果放泡时间太长或气压太高，气泡将聚在一起以气柱状上升。
• Properly designed heat exchangers substantially improve the contacting in the bed by breaking up growing bubbles .
  合理设计的热交换器能使长大的气泡破碎，以有效地改善床层中的接触。
• The gas bubbles affect the acoustic properties of the line by energy dissipation as well as by added compliance .
  气泡改变了管道的声学性质，这是由于能量的耗散和增加了顺从性的缘故。