• 1. column density: 柱密度
• 2. Vertical column density: 垂直柱浓度
• 3. density gradient column: 梯型密度柱 | 密度梯度管 | 密度测量柱

更多释义

• 1.When underbalanced drilling or drilling easy leaky zone by using aeration fluid, the determination of fluid density and downhole fluid column pressure is very important.
  利用气体型流体进行欠平衡钻井，或钻易漏地层时，流体密度及井下液柱压力的确定十分重要。
  dict.yoduao.com
• 2.It requires a certain degree of fence, a certain density (refers to the vertical column), but also a certain intensity.
  它要求护栏有一定的高度，一定的密度(指竖栏)，还要有一定的强度。
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• 3.With an example of eccentric column capacity, a potential function that satisfies the boundary conditions is formed to obtain corresponding electromagnetic field and its energy density.
  文章以偏心圆柱电容为例，通过构造一个满足边界条件的势函数，进而得到相应的静电场和电场能量密度。
  dict.yoduao.com

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