1) process water closed circulation
过程水封闭循环
2) closed water circuit
封闭水循环
5) Closed circulation and reuse of wastewater
封闭循环用水
6) the closed recycled aquiculture system
封闭循环水池塘
补充资料：循环系统的进化环节动物的封闭式循环系统
李瑞端绘
[图]
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条