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- Keywords phreatic water;confined groundwater;watertight stratum;endemic fluorosis; 潜水;承压水;隔水层;氟地方病;
- Is this roof completely watertight? 这屋顶一点也不漏吗？
- I'll have watertight windows fixed. 我要装上不漏水的窗。
- watertight stratum 土壤不透水层
- As soon as the alarm went, the crew raced round shutting the watertight doors. 警报一响，船员们跑来跑去把船上的密封门关紧。
- They represent each society stratum. 他们代表各个社会阶层。
- They do not constitute a separate class or stratum. 知识分子和青年学生并不是一个阶级或阶层。
- These materials need not be watertight. 这些材料无需有防水性。
- He hates the privileged stratum. 他憎恨特权阶层。
- I will have watertight windows fixed. 我要装上不漏水的窗。
- This is a stratum we must win over. 这一阶层，我们是必须争取的。
- Tramps are from the lowest stratum of society. 流浪汉来自社会最下层。
- The system, of course, is not watertight. 当然这套系统也不是天衣无缝的。
- She had 16 watertight compartments. 船上有16个密封舱，
- The case has to be made watertight. 案由必须做到无懈可击。
- Close watertight doors and report. 关闭水密门并报告。
- Is The Intermediate Stratum Forming in China? 中国的中间阶层正在形成?
- A watertight alibi;a watertight contract. 无懈可击的借口；严密的合同
- Modification of breather stratum about airslide. 空气输送斜槽透气层的改造。
- To form bends in(a stratum of rock. 地层褶曲（在地层的岩石上）形成弯曲
