随着养殖时间的延长，各项水化学指标均呈上升趋势。

With the extension of culture, various hydrochemical indices showed an upward trend.

youdao

随着养殖时间的延长，各项水化学指标均呈上升趋势。

With the extension of culture, various hydrochemical indices showed an upward trend.

youdao