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- Installed at the residential fire sprinkler service connection to the main, Series 07S Dual Check Backflow Preventers protect the water supply against polluted water being siphoned back from the sprinkler system. 安装在住宅消防喷淋头与主管道连接处，系列07S双止回防回流阀保护水供应系统不会受到从喷淋系统中虹吸回来的污染水的污染。
- She subscribes to an animal protection society. 她捐款给一个动物保护协会。
- What can we do to prevent the disease spreading? 我们能做什么来防止这种疾病蔓延呢？
- Please take some preventive medicine now. 请吃些预防药吧。
- We subscribe to an animal protection society. 我们定期捐款给一个动物保护基金会。
- We had to take preventive measures. 我们不得不采取预防措施。
- The authorities took measures to prevent tax fraud. 当局已采取措施防止偷税漏税。
- The young in our society need careand protection. 我们社会的年轻人需要受到关怀和爱护。
- Does prison do anything to prevent crime? 采取关押方法对制止犯罪有作用吗？
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
- Stir the sauce to prevent it lumping. 把沙司搅拌一下以免结块。
- We should take steps to prevent war. 我们应当采取措施制止战争。
- He was paying out half his profits as protection. 他把所得利润的一半交给歹徒作为保护费。
- They lobbied on the environmental protection issue. 他们就环境保护问题在议员中进行了游说。
- Preventive measures are essential. 预防手段是必要的。
- A thin jacket is a poor protection against cold. 一件单薄的夹克衫不足以御寒。
- The settlers banded together for protection. 移民联合起来保护自己。
- Nobody can prevent him from running the risk. 没有人能够阻止他去冒险。
- Seal (up) the window to prevent draughts. 把窗户封起来以防风。
- He's devoted his whole life to the protection of the rare animals. 他终生献身于珍稀动物的保护。
