新的冬季通风系统由带孔的塑料管组成。
The new winter ventilation system consisted of a perforated plastic tube.
基于渐进失效分析方法，建立了带孔的三维有限元模型。
Based on progressive failure analysis a 3d finite element model with a hole is built.
这些实验包括带孔板件的拉伸实验、板件的振动实验、板件的转动实验。
These experiments include tension experiment of a plate with a hole, vibration and turn experiment.
这些实验包括带孔板件的拉伸实验、板件的振动实验、板件的转动实验。
These experiments include tension experiment of a plate with a hole, vibration and turn experiment.
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