?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 推进器_造纸机配套设备系列_-巩义市科发造纸备厂
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Ƣ迎q入巩义市科发造纸备厂官方|站Q?/h2>

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推进器(PropellerQ是Q何Ş式的能量转化为机械能的装|。通过旋{叶片或喷气(_来生推力的。可以用来驱动交通工具前q,或是作ؓ其他装置如发甉|的动力来源?/p>

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