They watched silently a little longer, their three faces still close together as before, and the triple hues of their hair mingling.
她们悄悄地又观察了一会儿，三张脸像先前一样挤在一起，三种不同颜色的头发也混合在一起。
The rotor has recesses in its three faces between the lobes.
转子在其凸角之间的三个面上有凹槽。
Each face is an equilateral triangle and three faces meet at each vertex.
每一个面是正三角形并且于每一个顶点处有三个面相交。
Volume-stress: the stress exists in three directions in the volume of the component is called Volume-stress, which is also called three-faces stress.
体积应力：应力在构件结构中沿空间三个方向上发生，也称三向应力。
Volume-stress: the stress exists in three directions in the volume of the component is called Volume-stress, which is also called three-faces stress.
体积应力：应力在构件结构中沿空间三个方向上发生，也称三向应力。
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