bottom water circulation

基本解释

The bottom is the mezzanine with built-in water circulation system which has better thermostatic performance than air cooling system is good, improved pellet quality.
槽底爲夾層，內置水冷循環系統，恒溫性能比一般氣冷系統好，提高了顆粒質量。
This research shows that: mud springs are a special kind of spring, whose mud comes from bottom mud of lakes and water comes from groundwater at different circulation depths.
研究結果表明，湖眼泥漿來自湖盆底泥，其水分可來自不同循環深度的地下水；
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The nature of the bottom, the circulation of the deep currents, and the chemistry of the water are poorly understood.
（我們對）海底的自然生態、深海水流的循環，以及海水化學目前都知之甚少。