The piriformis muscles, strong external rotators of the thigh, attach to the sacrum and the femur. Stretching them can increase S-I joint instability.
梨状肌是附着在骶骨和大腿骨上的强大的回旋肌，对他们的拉伸有损于骶髂关节的稳定性。
Conclusions Besides the injury of the radial collateral ligament, the injuries of the external musculus extensor and the aponeurosis can cause the posterolateral rotatory instability of the elbow.
结论肘关节后外侧旋转不稳定除桡侧副韧带的损伤外，可能还有外侧伸肌及伸肌腱膜的损伤。
In traditional wireless communication, due to the interference of the external environment and channel instability, the outage probability of network is high.
传统的无线通信中，由于外部环境的干扰，信道的不稳定，网络的中断率比较高。
The large global external imbalances and the equally sizable flows they engender pose another potential source of market instability.
种种大规模的全球性外部失衡和它们所造成的同等规模的资金流动量，构成市场不稳定的另一个潜在来源。
Motivated by the particle acceleration problem in pulsars, it is numerically investigated for electrostatic instability of electron-positron pairs injected in an external electric field.
出于脉冲星中粒子加速问题，讨论外电场中注入的正负电子对静电不稳定性。
An important characteristic of instability failure of coal and rock which is subjected to external loadings is that its deformation possesses property of strain softening.
煤岩体在外载荷作用下发生失稳破坏时的一个重要性质就是其变形具有应变软化的特征。
When the external electric field is given, the maximum modulation instability growth rates will increase to a maximum then decreases as the incident optical intensity enhances.
在外加电场给定时，调制不稳定性增长率的最大值随入射光强的增大先达到一峰值然后又减小。
When the external electric field is given, the maximum modulation instability growth rates will increase to a maximum then decreases as the incident optical intensity enhances.
在外加电场给定时，调制不稳定性增长率的最大值随入射光强的增大先达到一峰值然后又减小。
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