IV and front sandbar, the reservoirs have the characters of multiplayer. low permeability, small single layer thickness.
油层具有发育层数多、渗透率低、单层厚度薄等特点；
The first optimum model is established with the target function of the frame's weight as well as with the design variables of the beam's single layer thickness.
首先以纵梁各部分单层厚度为设计变量，建立了以车架重量为目标函数的优化模型并进行了优化研究，取得了较好的优化效果。
For any single layer within a system the actual thickness is permitted to be 10% less then the minimum thickness.
对仅由一层涂层构成的系统，实际的厚度可以允许比最小厚度值小10%。
By adjusting the difference of refractive index of the double layer film, single mode operation can be realized with a certain waveguide thickness.
通过改变外延生长工艺来调节两层薄膜的折射率，可在一定波导的厚度范围内实现单模传输。
Insulation with more uniform thickness of single layer may be extruded by using this cross-head without die adjustment.
使用时不必调节模具就能挤出具有较均匀的单边厚度的绝缘层。
Insulation with more uniform thickness of single layer may be extruded by using this cross-head without die adjustment.
使用时不必调节模具就能挤出具有较均匀的单边厚度的绝缘层。
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