以下为句子列表：
英文: A two-dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks: parallel to the surface, 450 oblique angle to the surface, and quarter-circle.
中文: 摘要建立了无限长板的具有吸收边界的二维平面应变有限元模型，在研究了脉冲超声波在无限长板中传播的基础上，对板中平行于表面的裂纹、与表面成45°的斜裂纹和四分之一圆周弧形裂纹三种情况的脉冲超声波散射进行了重点研究。
更详细...
英文: The side thrust of the central dome is deducted and keeps out on the big certificate in the things two sides by half a dome, side thrust and every two light half dome and east at oblique angle of them, west both ends two blocks of wood keep out each.
中文: 中央穹顶的侧推力在东西两面由半个穹顶扣在大券上抵挡，它们的侧推力又各由斜角上两个更小的半穹顶和东、西两端的各两个墩子抵挡。
更详细...
|
