An analysis of surface instability of an incompressible half space under biaxial loading is summarized, and the critical condition for the onset of surface buckling is given.
对于不可压缩弹性半无限体，概述在双向受载下自由表面的失稳分析，给出失稳的临界条件。
Preexisting research shows that there are three main factors that affect the borehole stability of Air-Drilling: mechanical reason, hydration reason and the Weaked surface instability reason.
研究表明，影响空气钻井井壁稳定的主要因素有三个：力学不稳定，水化不稳定和岩体破裂或弱面不稳定。
The manifestations of KCS is tear film instability and (or) the abnormal ocular surface.
而干眼症主要表现为泪膜不稳定和(或)眼表面的异常。
For the cold protosolar accretion disc, convective instability will gradually end from the outer region to the center and from the surface to central plane.
原太阳吸积盘为冷的薄盘，盘中热对流不稳定性由外而内，由上而下地终结；
It is shown that the temporal growth rate of modulation instability is increased significantly in the corona region near the critical surface in laser-produced plasmas.
分析结果表明，激光等离子体的临界面附近的调制不稳定性的时间增长率较激光等离子体中其余位置处更为显著。
The results show that the joint surface and the F1 fault of the slope made a major impact on the slope instability and formed the front section damage and slide mode under certain conditions.
结果表明：边坡的失稳主要受顺坡向的节理面和F1等断层控制。它在将来某种条件下的失稳破坏并会形成前端整体的滑动破坏模式。
In the jointed fractured rock mass, the instability of tunnel is always because the blocks slip along the joint surface.
在节理破碎岩体中，隧道的失稳破坏往往是由于岩块沿节理面的剪切滑移造成的。
Higher temperature of cornea on ocular surface may cause instability of tear film, which is one of the major causes for dry eye.
眼表角膜温度升高，泪膜稳定性减弱，可能是造成蒸发过强型干眼的因素之一。
Ground surface subsidence for the instability of key stratum and its instability conditions are quantitatively analyzed. The result is practical in engineering.
定量地分析了关键层失稳时的下沉量以及关键层的失稳条件，具有工程应用价值。
The plastic instability behavior of the laser-textured steel sheet with defined surface features is investigated. Comparison is made with the normal sheet taken from the same coil of meatal sheet.
试验研究了具有一定形貌及粗糙度的激光毛面薄钢板及同材质普通薄钢板的失稳行为。
The plastic instability behavior of the laser-textured steel sheet with defined surface features is investigated. Comparison is made with the normal sheet taken from the same coil of meatal sheet.
试验研究了具有一定形貌及粗糙度的激光毛面薄钢板及同材质普通薄钢板的失稳行为。
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