简介：During a visit to friends, Sara begins having visions and is attacked by an unearthly creature in her friend's swimming pool; she soon discovers that anyone who comes into contact with the water is in danger and she is driven to confront the mystical and malevolent creature lurking in the depths.。行业企业一方面通过技术改造及高新技术应用，推动产业制造范式向智能制造、服务型制造方向发展，产业持续拥有着多层次、多元化产品的高品质研发制造优势