two concentric eyes 同心双眼
two concentric sleeve pipes 双层套管
two concentric rotating cylinders 两个同心旋转圆柱
two jaw concentric lathe chuck 两爪自动车床夹盘
two thin concentric cylinders 双层薄同心圆筒
two-core e concentric cable 双管同轴电缆
The cartridge is formed by two concentric cylinders, an inner fine wire mesh screen and an outer wire mesh screen.
墨盒是由两个同心圆筒，一个内细丝网屏幕和一个外网的屏幕。
The shape problem of interface surface of bicomponent flows between two concentric rotating cylinders is investigated.
研究两个同心旋转圆柱之间的两种流体的交界面几何形状问题。
Like the CORE of earth, the mantle can also be divided into two concentric layers, the lower mantle and the upper mantle.
就像地球的核部一样。地幔也可分为两个同心圆圈层，下地幔和上地幔。
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