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.

youdao

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.

youdao