The great inventions of that century-the steam engine, mechanical spinning, smelting iron with coke-all served to economise on the expensive factor of production and use more of the cheaper one.

那个世纪的伟大发明如蒸汽机，机械纺纱机，焦炭炼铁大大的节省了高额生产成本，使其更为低廉。

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Here again there are steam-air finishers that take care of all your silk needs, and with a steam electric hand iron on the press.

在这里再次有蒸汽空气选手的照顾您所有的丝绸的需求，并有蒸汽电动手铁对新闻界。

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Steam-Water, Oil, and Gas. Standard on all NIBCO Iron Body Valves unless otherwise specified.

蒸汽，水，油和气。所有美国尼必可铸铁阀体阀门的标准配置，除了特别指定以外。

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