1. Plunger valve closed by a stainless steel plunger up and down two flexible sealing rings and a metal compartment box formed by the plungend the O-ring sealing effect close coordination to achieve, the plunger inserted two seals, the seal area much larger than the normal cut-off valve; switch plunger valve, the plunger in the ring in slow-moving, almost non-contact suce wear, closed, the plunger, insert the following ring to cut off flow channel; Orbital Ball Valve is turned on, while from sealed plunger circle, but still hidden in the O-ring inside to keep from the outside world will not leak.
柱塞阀的关闭由一个不锈钢柱塞、上下两只富弹密封圈及一个金属隔框组成，密封效果由柱塞与密封圈紧密配合来达到，柱塞插在两只密封圈中，密封面积远大于普通截止阀；开关柱塞阀时，柱塞在密封圈中缓慢移动，接触面几乎不磨损，关闭时，柱塞插入下密封圈，截断流道；开启时，柱塞虽然脱离下密封圈，但仍藏在上密封圈内，保持与外界隔离，不致发生泄漏。
2. By analyzing several cases of sulfur corrosion in a 200kt/a distillation unit, some improvement measures are put forward and the hidden troubles of corrosive leak are eliminated, thus ensuring a safe, stable and long cycle operation of the unit.
通过对200kt/a蒸馏装置几起硫腐蚀典型事例的分析，提出了改进措施，消除了腐蚀泄漏隐患，确保了装置安全、平稳、长周期运行。
3. The leak model of radial-clearence of polymer fluid was founded with the origin equation and the hidden function of the best clearence was obtained, simultaneously it was proceeded to the numeric calculation.
利用幂律流体的本构方程建立了幂律流体在斜齿齿轮泵径向间隙中的泄漏模型，并得到了最佳径向间隙的隐函数式及径向摩擦功率，同时给出实例并进行了数值计算。
4. As electrical of the sensitive information gives people more convenient, its security, such as the leak of data and resource, is becoming one of the major hidden peril people must give attention to.
敏感信息的电子化在使用户得到便利的同时，数据、资源免泄漏也成为了人们必须注意的一个大隐患。
5. They want roofs that don't leak, chairs with four legs apiece, graffiti-free lavatories and no hidden spaces where bullies can lurk.
他们想要不漏水的屋顶，四只脚的椅子，没有涂鸦的厕所，还有欺负弱小的坏小子无处藏身的开放空间。