What does this poem-He Lang's moonlit song "Moving Cold River" mean? Thank you, God, for helping me.

There is 107 Qiupu Song (104), the fire shines everywhere, and the red stars are everywhere. The fire is raging, the red star is splashing, the purple smoke is transpiration, and the vast world is illuminated by the red flame. On the night of the moon, copper smelters sang, and their songs resounded through the cold valley. Smelter 1 working, 1 singing, loud singing makes the cold river ripple. See more answers >>