the structural thickness 结构层厚度
structural course thickness 结构层厚度
And the effect of corrosion on structural strength is discussed in brief by changing section thickness.
并用改变构件局部截面尺寸法，对构件锈蚀引起的结构强度变化作了简单的探讨。
Restricted by structural interface thickness, conventional technical measures can not meet the requirements any more.
受结构界面厚度的制约，常规工艺措施已经存在不适应。
The structural deformation is the principal geological factor that affects the thickness variation of coal seam on a mine field scale.
构造作用是控制井田范围内煤层厚度变化的主要地质因素。
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