例句與造句

1. Weighted function method for a crack opening displacement of an elliptical crack
   橢圓裂紋張開位移權函數(shù)法
2. A noval method on exact solutions of elliptical cracks in piezoelectrics
   壓電材料中橢圓片狀裂紋問題精確解的一種方法
3. According to the constitutive relationship in linear piezoceramics , elliptical crack problems in impermeable case are analyzed with hypersingular integral equation method
   摘要在線性壓電陶瓷本構關系和裂紋邊界絕緣的框架下，用超奇異積分方程的方法對橢圓類片狀裂紋問題進行了重新研究。
4. The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks , detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack , a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading . the distributions of tz are minutely studied in the forward section of the cracks . strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
   全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難,對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析,首次全面分析了非穿透裂紋端部場三維影響區(qū)范圍,給出了不同形狀三維裂紋前沿離面應力約束因子tz的數(shù)值解,并結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數(shù)描述。
5. It's difficult to find elliptical crack in a sentence. 用elliptical crack造句挺難的