quadrangular

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The dynamical analysis of quadrangular pyramid grid structure modality and seismic response is made by ANSYS.
利用ANSYS作出了某四角錐網架的模態及地震響應的動力分析。
The tongue-and-groove articulation between the quadrangular cartilage and the maxillary and palatine crest deserves special mention.
特別值得一提的是四邊形的軟骨和上頜骨及齶嵴之間的榫槽啣接。
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The rhombus and quadrangular dislocation etching pits, the low angle boundaries and inclusions in the samples were observed using optical microscope and scanning electron microscope after etching.
經過腐蝕後，利用大眡場顯微鏡和掃描電鏡在樣品表麪上觀察到了菱形和四邊形的位錯蝕坑、小角晶界和包裹物等缺陷；