Conclusion Setting up the installation obstracted snails to cut off the way of snails spreading was the effective measure of control schistosomiasis in lake-swamp areas.
结论兴建防螺扩散设施，阻断钉螺扩散途径，形成单元性强的灭螺小区进行治理是垸内水网型血吸虫病流行区控制钉螺减少发病的有效对策和措施。
Heavy rains will weaken pollution of the water as the lake has no clean water resource. After cut off the sewage of the lake, water quality of the lake was improved.
污染源对湖水水质有重要的影响，在切断了外源污染后，水质有所改善，但水体污染依然严重。
Although it hovers near the freezing point, cut off from light and outside nutrients, Lake Vostok is teeming with microorganisms.
尽管温度处于冰点附近，隔绝了阳光和外界的营养，沃斯·托克湖还是存在大量的微生物。
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