1. 水堵：water block remover 解除水堵剂 | water block 水堵 | water blocking 水堵
2. 水封：water blast pump 水喷射泵 | water block 水封 | water bloom 水发绿,水华
1. Workers with the fishery authorities are trying to block the poisonous water from polluting nearby waters but the pollution is expanding.
2. " The first job is to fortify the dykes rather than attempt to block the water, " he added.
3. The lack of sewage treatment facilities is also a stumbling block that makes the protection of water sources a difficult task.
4. water block
4. He said as the breach was narrowed, water would flow faster making it more difficult to block it completely.
5. Chinese water block woodcuts on xuan paper have garnered acclaim throughout the world.