The casing of the electricity generating gear box covers the driving shaft.

发电齿轮箱的外壳包覆驱动轴。

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The bicycle driving shaft is provided with an electricity generating gear box.

在自行车驱动轴上设置一个发电齿轮箱。

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The generating motion of the generating gear and the work gear on spiral bevel gear NC machining is analyzed.

分析了弧齿锥齿轮数控加工中产形轮和工件齿轮之间的展成运动，建立了弧齿锥齿轮齿面的数学模型。

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Rogers calls these Save-A-Watts and wants Duke to get a return on monitoring equipment and controls in its customers' premises calculated not from the capital cost of that gear but from the capital it would otherwise have spent to add generating plants.

FORBES: Magazine Article