他注意到，由于水的流动，你不可能两次踏入同一条河流，这是对于万物皆非静止的一个比喻。
He noticed that because the water flowed, so you can never step into the same river twice. That was a metaphor for nothing stands still.
每件事都在持续的流动着，没有什么是永远不变静止不动的，由其是我们自己。
Everything is in constant flux, nothing stays the same forever, especially ourselves.
HK 系列接头设计用于一般用途的液压服务（静止的和流动的石油和燃气）。
The HK Series is designed for general purpose hydraulic service in stationary and mobile Oil & Gas applications.
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