1) Problems with few Solutions
三农难解项
2) Problems with no Solutions
三农无解项
3) Problems Awaiting Solutions
三农必解项
4) three difficult rural problems
"三农"难题
5) an abstruse question
一项难解的问题
6) J-A_2 three-term solution
J-A_2三项解
1.
Based on the geometry constraint,this paper analyzes the effect of material strength mismatching deeply,and obtains the formula J-A_2-A_(2m) which is based on the J-A_2 three-term solution of homogeneous material to predict crack tip fields of welded joints,and apples it to the modified of J - R resistance curves of welded joints.
本文基于几何约束,对强度失配的影响进行了深入的分析,基于均匀材料中描述几何约束的J-A_2三项解,得到了预测焊接接头裂纹尖端应力场的J-A_2-A_(2m)公式,并通过有限元方法验证J-A_2-A_(2m)公式预测的裂纹尖端应力场,同时将其应用于焊接接头的J-R阻力曲线的修正来对J-A_2-A_(2m)公式进行试验验证。
补充资料：三摩难咀啰
【三摩难咀啰】
（术语）Samanantara，译曰等无间缘。四缘之一。唯识述记四末曰：“三是等义，摩是无义，难咀啰是间义。”
（术语）Samanantara，译曰等无间缘。四缘之一。唯识述记四末曰：“三是等义，摩是无义，难咀啰是间义。”
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条