求翻译：简述了水华的含义、成因和危害，并介绍了水华的各种防治措施，同时提出生物技术在水华防治中存在的问题,且对其研究前景进行了展望。目前水华治理方法主要有物理法﹑化学法和生物法。藻类水华会释放大量毒素和有害物，造成水生生物大量死亡，严重危害渔业生态环境。生物防治方法可降低水体富营养化程度、控制藻类过度繁殖，防止有害藻类的爆发。是什么意思？

Outlines the bloom meaning, causes and hazards, and describes the blooms of various control measures , and proposed biotechnology bloom prevention and control problems and its research prospected .

In the water, the meaning, the causes and hazards, and on the water, the prevention and control measures, as well as to develop biotechnology in the water, to combat the problem, and to study the prospects for the future. At present, water treatment methods are mainly physical, chemical and biologic

Has summarized Shui Hua the meaning, the origin and the harm, and introduced Shui Hua each kind of preventing and controlling measure, simultaneously proposed the biological technology prevents and controls the question in water China which exists, also has carried on the forecast to its research pr

Describes the meaning, causes and harm of water bloom, blooms and introduced various preventive measures, as well as problems of bio-technology in prevention and treatment of water, and looks forward to the prospect of its research. Current water treatment methods include physical, chemical and biol

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