这些特点说明琉球沟弧系上覆板块与俯冲板块的耦合比其他沟弧系弱，而琉球海沟本身又往南趋弱。
These characteristics reflect that couplings between the upper arc and the subduction slab of the Ryukyu trench are weak relative to other common trenches, and themselves weaken toward to the south.
通过建立局部坐标系，得到了裂缝性地层井壁发生失稳的弱面角度随井底压力变化的规律。
Then, the influence of bottom hole pressure on the failure range of weak plane is analyzed for bore holes in naturally fractured formation, with the help of the local coordinate system.
采用永磁同步电机d、q坐标系下的相量分析法，研究不同弱磁率对电机功率特性、转矩特性和弱磁特性的影响。
The torque characteristics, power characteristic and field weakening characteristic of the SPM motor have been analyzed in details by the phasor method.
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