第二线缆组件包括：第二小齿轮，其被安装来在所述外壳内做旋转运动；
A second cable assembly includes a second pinion gear mounted for rotational movement in the housing.
第二齿条，其被安装来在所述外壳内做直线运动，所述第二齿条与所述第二小齿轮啮合，以便所述第二小齿轮的转动直线地移动所述第一齿条；
A second rack is mounted for linear movement in the housing. The second rack engages with the second pinion gear such that rotation of the second pinion gear linearly moves the first rack.
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