The results show that the transfer efficiency is much higher when polarization direction of injected laser coincides with the direction of long axis than with that of short axis of the waveguide.
结果表明：注入激光的偏振方向与波导长轴方向一致时的传输效率远高于与波导短轴方向一致时的传输效率。
The main direction of the vessels was parallel with the long axis of the teeth.
其主要的血管走行方向为与牙齿长轴平行。
Objective To study the influence of incidence angle of ultrasound and strain length(SL) on strain imaging(SI) and strain rate imaging(SRI) in long-axis direction.
目的探讨室壁与入射超声之间的夹角及应变长度（SL）对长轴方向应变成像（SI）和应变率成像（SRI）的影响。
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