seal catchbasin 水封槽

lye catchbasin 碱液槽

foam catchbasin 泡沫槽

etch catchbasin 腐蚀槽

head catchbasin 高位槽

mixing catchbasin 混合槽

liquor catchbasin 药液贮槽

ripple catchbasin 水波槽

clearing catchbasin 澄清槽