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- Design a poster for preventing water pollution. 设计一幅防止水污染的海报。
- The floor is sealed to prevent water penetration. 地板加了密封涂料防止渗水。
- Carts that becme warped preventing water tightness are unacceptable. 因为筒变形而不能很好的装水是我们不允许的。
- People plant tree on the blad hill to prevent water and soil be rubbshed. 人们在荒丘上种植了树木,以减少水土流失。
- The resistors are coated to prevent water films from forming on the surface. 电阻器经过表面涂敷，以避免在其表面形成水膜。
- They used waterproof cement to prevent water from seeping through the roof of the tunnel. 他们用防水的水泥阻止水从坑道的顶上渗入。
- Draining in length and breadth, preventing water into subgrade with purdah, isolating surface water with geomembrane are adopted. 采用纵横向盲沟排水，采用地基帷幕隔绝沟水渗入地基，采用土工膜隔绝地表水；
- So it is a important task of waterhead management that understanding the foundation of water pollution and preventing water from being polluted. 了解水污染源,防止水污染产生和进一步恶化是水源管理中的一项重要任务。
- The body contains a check valve, preventing water leakage, therefore, this operation can be carried out without draining the water from the radiators. 阀体包含一个止回阀，用于防止水泄漏，因此，不需要将散热器内的水排出即可进行更换操作。
- They used waterproof cement to prevent water from seeping through the roof of the runnel. 他们用防水水泥来防止水从屋顶的排水通道里渗透。
- The worms, beetles and mites, meanwhile, drill tiny channels through the humus, allowing air to diffuse into the filter and preventing water from getting blocked. 同时，其中的各类虫子会在腐殖质中钻出细小的通道，让空气进入这个过滤器中，防止水被阻塞。
- Please ensure proper functioning of the toilet cistern when supply resumes to prevent water overflow. 当恢复供水后，请确保厕所水箱操作正常以防水箱满溢。
- The rugged construction is double-sealed to prevent water and dust ingress even during site wiring. 的目的是直接驱动器，可以安装在任何操作系统的角度。
- By analyzing water eutrophication mechanism,the prob lem to prevent water eutrophication in reservoir is discussed. 通过分析富营养化发生机理,讨论了水库富营养化防治问题。
- This paper proposes related measures to prevent water pollution in view of our country water pol... 强调实施污水资源化战略应作为水资源供需矛盾的主要手段。
- The high heat of vaporization also prevents water sources in the tropics from getting evaporated quickly. 很高的蒸发比热还可以防止赤道地区的水资源被很快地蒸发掉。
- The clear water mirrored the blue sky. 清澈的水中映出蔚蓝的天空。
- In polar and cold temperate regions many of the evergreens are shrubs or trees with needlelike or scalelike leaves, adaptations that prevent water loss by transpiration. 在两极或寒温带，多数常绿植物是灌木或具针状、鳞状叶片的树，这是一种防止因蒸腾而散失水分的适应机制。
- Transportation and storage of pesticides and disposal of expired or ineffective pesticides shall be strictly controlled to prevent water pollution. 运输、存贮农药和处置过期失效农药，必须加强管理，防止造成水污染。
- To prevent water damage, the valve must be properly connected to a discharge line which terminates at an adequate drain. 为了防止水的破坏，这些阀门必须与排水管道连接，以便能够将水排到适当的排水口。
