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[力]裂纹扩展；裂纹扩张
1、extension───n.拓展；延伸；接发；（医学）牵引；（计算机）拓展名；（逻辑）外延
2、a crack───裂缝
3、smoking crack───吸食KeKaYin
4、crack baby───KeKaYin成瘾的婴孩（这种毒瘾是在母亲妊娠时期染上的），毒瘾婴儿；n.KeKaYin成瘾的婴儿
5、crack whore───XiDuJiNv（俚语）
6、crack───v.使破裂；将（谷物）粗磨；砸开（保险箱）；成功获得；（可听到响声的）重击；（使）发出爆裂声；（突然）变嘶哑；使屈服；（非正式）吃不消；（非正式）突然大笑；（非正式）找到解决方法；阻止；开瓶；说（笑话）；使（碳氢化合物）裂化；n.(Crack)（英、加、美）克拉克克（人名）；n.裂缝；裂纹；缝隙；爆裂声；（可听到响声的）重击；尝试；强效KeKaYin；（挖苦人的）玩笑；好时光；（观点或制度中的）缺陷；声变；adj.训练有素的，技艺高明的，最好的
7、furlough extension───休假延期
8、extension tube───n.伸缩管
9、life extension───寿命延长
1、This treatment has an effect on delaying the crack extension and hence suppressing its cracking.───这一处理方法起到延缓裂纹扩展、抑制起裂的效果。
2、The new GR crack extension resistance as a fracture criterion for complete crack propagation in concrete structures───混凝土结构裂缝扩展全过程的新GR阻力曲线断裂判据
3、No evidence of fatigue crack extension was detected in the silver Memorial Bridge nor the Fremont Bridge .───在西尔费纪念桥和弗里蒙特桥都没有检查出疲劳裂纹扩展的证据。
4、The stress field near crack tip is an important factor to effect crack extension.───裂纹缺陷周围的应力变形场是影响裂纹扩展的重要因素。
5、Under the alternative load, fatigue crack extension tends to happen and leads to leakages in the high-stress area.───在交变载荷作用下，高应力区易发生疲劳裂纹扩展，导致泄漏。
6、crack growth rate was decreased with crack extension because of the sliding contact of the crack faces.───随着裂纹的扩展，裂纹扩展速率由于裂纹面的滑移接触而减小。
7、Research on relation between crack extension resistance curve and sample thickness───裂纹扩展阻力曲线与试样厚度关系
8、Theoretical study shows that the crack extension under shear loading is caused by tensile stress, and it does not belong to shear fracture.───理论分析证明，在剪切载荷作用下裂纹扩展是由于拉伸应力引起的，并非剪切PoHuai。
9、Metallic materials -- Method of test for the determination of resistance to stable crack extension using specimens of low constraint───金属材料—使用低约束样品测定耐稳态裂纹扩张性的试验方法
1、This result supports previous fracture models that are based on absolute reaction rate theory and predicts an exponential dependence of crack extension rate on applied stress intensity.
2、The crack growth rate was decreased with crack extension because of the sliding contact of the crack faces.