By varying the groove spacing, the diameter of the single or double diameter hole, and the rear air cavity depth and content, one can obtain absorption over a wide variety of frequencies.
通过改变槽间距，直径的单人或双人直径孔，与后方空气腔的深度和内容，就可以得到吸收超过各种各样的频率。
And then a theory on the penetrating depth, the number of impact and the relation between penetrating resistance and depth was obtained by means of dynamic spherical cavity expansion.
应用动态球腔扩张理论，建立了冲击贯入方程、冲击次数表达式和贯入阻力与贯入深度的关系。
A micro cavity stamping equipment is developed and its mechanism is especially designed to ensure the stamping depth accuracy.
设计制作了专用的微小型腔冲压实验装置，从机构设计上保证加工工艺对微小型腔冲压深度的精确控制。
The width of the atomic oxygen undercut cavity varies with the thickness of the protective coatings, and the depth of undercut cavity also sees a small change.
保护层厚度主要对初次入射原子氧的入射过程有影响，加厚保护层可以减小原子氧的掏蚀深度和掏蚀空腔的宽度。
The minimum depth of conical die and the relationship between coning of die cavity and workpiece length are determined;
确定了锥形模膛的最小长度、模腔锥角与毛坯长度的关系；
The minimum depth of conical die and the relationship between coning of die cavity and workpiece length are determined;
确定了锥形模膛的最小长度、模腔锥角与毛坯长度的关系；
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