The pre-filer solves the problem that the used wind generated by adopting the prior art has the disadvantages of low purified degree, so that the mechanical jamming is generated in the turnover.
它解决了现有技术所存在的用风纯洁度不高，导致道岔产生机械卡阻的缺陷。
The pre-filer solves the problem that the used wind generated by adopting the prior art has the disadvantages of low purified degree, so that the mechanical jamming is generated in the turnover.
它解决了现有技术所存在的用风纯洁度不高，导致道岔产生机械卡阻的缺陷。
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