Has been down stream, flows in my heart, nourish my heart.

一直往下流，流入我的心田，滋润我心窝。

I looked away down stream, and saw a black speck on the water.

我向下游远远的望了一下，看见水面上漂着一个黑点。

The soul, going down stream in this gulf, may become a corpse. Who shall resuscitate it?

漂在那深渊里的心灵可以变成尸体，将来谁使它复活呢？

Requirement: Air inlet must start to open when down stream pressure is 1.0 PSI or above.

要求：当下游流体压力在1.0 PSI及以上时，空气进口必须开始打开。

Growth is a little poem on this excerpt. Or happy or sad, happy to sing, cry down stream.

成长是摘抄本上的一首首小诗。或欢快或哀怨，开心时高声吟唱，低落时黯然泪流。