在北美，PVC的主要用途按重要性排列为管道、建筑材料、消费产品、包装纸和电器产品(比如电线和电缆绝缘)。
The principal USES of PVC in North America, in order of importance, are pipes, construction materials, consumer goods, packaging, and electrical products (such as wire and cable insulation).
电缆应按图纸要求规定的路径敷设，敷设时尽量减少交叉，电缆要排列整齐。
The cable should be laid according to the route specified in drawings. And while laying, there should be as little cross as possible, and the cables should be arranged orderly.
地震数据及系统命令沿操作者定义的路径传输，可避免因个别电缆故障而引发的排列问题。
Seismic data and system order are transmitted through the path defined by the operator, which can avoid the lay -out problem produced by separate cable fault.
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