这种天花板的形状可以是扇形，也可以是弧形，或者交错而成。
This could be the shape of the ceiling fan can also be curved, or staggered from.
执行详细目视检查确保钢索没有接触到除了滑轮，扇形盘，钢索封严或者安装在钢索运行行程上的索环的其他部件。
Perform a detailed visual inspection to make sure that the cable does not contact parts other that pulleys, quadrants, cable seals, or grommets installed to control cable routing.
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