您要查找的是不是：
- Check detector seals, and replace as necessary. Clean or replace detector jets as necessary. 检查检测器密封垫,如有必要就替换。如有必要清洗或替换检测器喷嘴。
- A Double Check Detector Assembly shall be installed on fire protection systems when connected to a potable water supply. 当消防系统连接到饮用水供应系统时，应该安装一个双止回阀总成。
- Double Check Detector Assembly shall be installed on fire protection systems when connected to a potable water supply. 当消防系统连接到饮用水供应系统时，应该安装一个双止回阀总成。
- Series774 XDCDA Double Check Detector Assemblies are designed to prevent the reverse flow of polluted water from entering the potable water supply. 系列747XDCDA双止回阀检测器总成用于防止污水回流进入饮用水系统中。
- Series 709DCDA Double Check Detector Assemblies are designed exclusively for use in accordance with water authority containment requirements. 系列709DCDA双止回阀检测器总成专用于满足水主管部门的密封要求的应用场合。
- Series 774DCDA Double Check Detector Assemblies are designed for use in accordance with water utility non-health hazard containment requirements. 系列747DCDA双止回阀总成用于符合自来水公司非健康危害密封要求的应用场合。
- The plumber made a careful check of the pipes. 管子工对管道做了仔细的检查。
- Sunday is the best day to check the want ads. 星期天是在报纸上查寻招聘广告的最好的日子。
- Have you got any rain check for the following game? 你拿到下一场球的免费票了吗？
- It always pays to give your paper one final check. 写了东西最后检查一遍总是有好处的。
- He was careful enough to check up every detail. 他非常仔细，把每一个细节都核对过了。
- Please check up these references. 请核对这些参考资料。
- Carefully check the car being scorched. 仔细检查过被烧焦了的汽车。
- He predated the check by five days. 他把支票上的日期填早了五天。
- I'll have to check the entries in the ledger. 我得核对一下总帐的项目。
- Is there a place we can check in our coats? 有暂存大衣的地方吗?
- I accept a check in lieu of cash. 我接受支票代替现金。
- Don't forget to check on your work. 别忘记检查一下你们的工作。
- He went aloft to check the sails. 他上去检查船帆。
- He filled up the check for$1000. 他开了1000元的支票。
