It is showed that twin dislocation is the activated step of the migration of twin-plane boundary during recrystallization.

指出，孪晶位错是再结晶过程中，孪晶界面迁移的激活台阶。

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In this paper, the stresses of gravity dam and dam foundation are calculated by the coupling method of finite element and half plane boundary element.

本文用有限元与半平面边界元耦合法计算了坝体坝基应力，又结合边界配置法求出了坝踵应力强度因子。

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Witnesses said the plane crashed through the hilltop airport's boundary wall and fell into a valley, CNN-IBN reported.

目击者说，飞机穿过小山顶上机场上的围墙，并掉进入一个山谷而坠毁，CNN - IBN电视台报道。

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Southwest Airlines has had a "customer of size policy" for more than 20 years, requiring passengers to buy a second seat on a full plane if their body crosses the armrest boundary.

CNN: Airline policies juggle larger passengers

Turkey, by contrast, has said the plane was hit 13 miles off the Syrian coast, about a mile beyond the country's 12-mile boundary, before crashing 8.5 miles off Syria.

WSJ: Turkey Finds Pilots' Bodies, Providing New Spark for Tensions