The Cell Space Search and the Common Plane techniques are used to judge the kinds of contact and have high efficiency compared with the direct search used in 2D DDA .
本文采用分格检索技术搜索相邻块体,利用公共面判断块体接触类型,较之直接检查法节约了机时,提高了计算效率。
参考来源 - 三维非连续变形分析方法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
PLANE crashes are all too common in Alaska, a state where the distances are gigantic and small puddle-jumpers are a routine form of transport.
飞机失事在阿拉斯加太普通了，这里空间距离遥远，而且小型飞机是惯用的交通工具。
Travel by bush plane is so common that Anchorage's Lake Hood Seaplane base is the busiest floatplane base in the world, with about 200 flights passing through each day.
乘坐丛林飞机旅行是很普通的事情，所以安克雷奇的霍德湖水上飞机基地是世界上最繁忙的水上飞机机场，每天大约有200个航班起降。
A spokesman said the plane was checked, no bomb was found and the aircraft left an hour and a half late. He added that such alerts were relatively common.
一位发言人说他们检查了飞机，没有发现炸弹，却导致飞机晚点一个半小时，他还说他们经常接到这样的警告。
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