他说，私营的铁路公司明白，当经济像齿轮一样再滚回来，他们将会在这个不断增长的市场获得一个更大的份额。
He says the private railroads understand that, when the economy gets back in gear, they will have a bigger share of the growing market.
铁路机车牵引齿轮的专业配套厂家。
Railway locomotive traction supporting the professional gear manufacturers.
这些方法不仅适用于一般机械，也适合于铁路工厂各种机械、专机中的齿轮变速箱设计。
All these methods are suitable for the design of gearboxes not only in general machinery, but also in various machinery and special purpose machine tools used in railroad factories.
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