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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The program offers a wide range of training includes mechanical engineering, spinning, knitting and other skills, which would otherwise be unaffordable for the children.

该规划提供内容广泛的培训，包括机械工程、纺线、编织以及其他技能，在通常情况下这些儿童是负担不起学费的。

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Mechanism of spinning entangling is analyzed and described regarding the main factors such as static absorption, mechanical hitching, and oily and wet sticking.

分析和论述了纺纱产生缠绕的机理，提出静电吸附、机械挂带、油脂粘附、湿涩增粘是胶辊缠绕的主要因素。

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The lower density means dramatically less drag force acting on the spinning disk stack so that mechanical power into the motor is substantially reduced.

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