今天上午，这个细长的100米高的火箭从位于佛罗里达州肯尼迪航天中心52层高的组装库被缓慢而巧妙地运到4英里外的发射平台。

The slender, 100 metre-high rocket was moved in a delicate, slow operation from its 52-storey assembly hangar at Kennedy Space Centre in Florida this morning to a launch pad about four miles away.

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这些密封有两个平面，一个很硬、另一个较软，两平面间除一层被泵送的油外，直接接触。

These seals consist of two flat faces, one extremely hard, the other softer, in direct contact except for a thin film of the oil being pumped.

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