当料浆的自然压力大于塑料管的耐压值后，便可使塑料管破管，从而使生产中断，浪费大量水泥、尾砂，并造成井下污染。
When the pressure is greater than the standard of the plastic pipe, the pipe will break, slurry and cement will escape from the pipe and pollute the mine.
存货在生产和分配的各环节中能缓和物资和产出的流量中断问题，从而提供生产力，这点也很容易被忽略。
It is also easy to overlook the productivity that inventories provide in smoothing out interruptions in the flow of materials and output through the stages of production and distribution.
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