water consumption in water-works 自用水量
water drenching density 淋水密度
water holddown C.C.R,water blanket C.C.R 水頂壓逆流再生
water level 水位
water reuse system 循環水系統
Water Table 地下水面
weak-acid exchange resin 弱酸性慢離子交換樹脂
weak-base exchange resin 弱鹼性陰離子交換樹脂
weir gate 堰門
weir loading 堰負荷
windage loss 風阻損失