The telephone wires were blown down by the rainstorm.
电话线被暴风雨刮落了。
The telephone wires were blown down by the rainstorm.
电话线被暴风雨刮落了。
Backwashingable filter can blow down at any moment and backflush the filter without pumping off,which improves the application effect,reduces the cost and elongate the working life.
可过滤器在不停泵的情况下随时排污和对过滤层进行作业,提了使用效果,降低了使用成本,延长了使用寿命。
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