In addition, since the shaft is vertical, the electric generator can be installed at the top, above the water-so there is no need for any waterproof boxes.

除此之外，它的轴的垂直的，发电机可以装到其顶部，高于水面，这样就不需要任何防水装置了。

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Pump shaft seals use mechanical seal, pump top and bottom, respectively, equipped with water injection plug and the drain plug.

泵的轴封采用机械密封，泵体顶部和底部分别装有注水、放泄的螺塞。

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Seal air is injected into the labyrinth seals located at the main motor shaft (top and bottom) and at the pinion shaft driving the motor.

密封空气被注入到主马达轴（顶部和下部）和驱动马达的齿轮轴的迷宫式密封里。

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Mine engineers decided to encase just the top part of the shaft with steel tubing to prevent rockfalls and further collapses during the extraction process.

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The entrance hall reaches up through floors of reading rooms, it is crossed over by high walkways and is penetrated from top to bottom by a glazed shaft.

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