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- shaft seal expiration 轴封失效
- The shaft seals use quality mechanical seal. 采用加长轴电机直联结构，轴封采用优质机械密封。
- Supported Shaft Seal: Bonding of elastomer to phenolic backing ring protects against distortion, a common cause of shaft leakage. 支撑性轴密封：弹性材料与酚醛背衬环的紧密结合体，有效防止由于扭曲变形导致的轴泄漏。
- Shaft seal: WB2 externally mounted F4 bellows mechanical seal to achieve dependable seal and long service life. 轴封：采用WB2型外装式F4波纹机械密封，密封可靠，使用时间长。
- The LP shaft seal of a 125 MW unit in Yunfu Power Plant was converted into honeycomb steam seal during overhaul. 云浮发电厂125MW机组大修中,把低压轴封改造为蜂窝式汽封。
- The shaft seal leakage,judgement and emergency measures of the final polycondensation reactor was introduced. 轴封是反应器的重要部件,其密封的可靠性至关重要。
- This paper has analyzed the reason the problem of shaft seal in Banbury mixer is hard to solve, and proposed an approach by effective cooling of the shaft soal. 本文着重分析了密炼机轴封问题难以解决的根本原因，并提出可通过解决轴封有效冷却的途径来加以解决。
- COMPLETELY PREVENT LEAKAGE AND MORE DUR-ABLE OF SHAFT SEAL/A specially designed driving device and a triple leek-proot devioe increae the lif the shaft seal and prevent leakage. 轴封完全防漏且无须经常更换/特殊设计的带动方式，使轴封能紧密耦合而不受损，且无漏漆之虞。
- In changing internal power drive to external motor drive, the design of shaft seal used in the tower is the key of equipment reform. 在实现由内动力驱动改为外部电动机驱动的过程中,如何解决塔的轴封,成为设备改造中的主要问题。
- By means of optimizing seal construction and packingmaterial, the shaft seal technique of polyprolylene polymerizer in thisplant are deeply researched. 从填料密封结构的优化、填料的优选对本厂聚丙烯聚合釜轴封技术进行了深入的研究。
- According to its shaft seal structure, high vacuum flapper valve is classified into GD-J rubber shaft seal type and GD-J(b)bellows shaft seal type. 高真空挡板阀按轴封结构可分GD-J型橡胶轴封和GD-J(b)型波纹管轴封两种。
- COMPLETELY PREVENT LEAKAGE AND MORE DUR-ABLE OF SHAFT SEAL/ A specially designed driving device and a triple leek-proot devioe increae the lif the shaft seal and prevent leakage. 轴封完全防漏且无须经常更换/殊设计的带动方式，使轴封能紧密耦合而不受损，且无漏漆之虞。
- Aimed at oil leaking of shaft seal for fan motor,the reason of oil leaking is analyzed.Speci-fic measures of eliminating oil leaking on motor shaft seal are provided. 针对通风机电机轴封漏油的问题，分析了漏油的原因，提出了消除电机轴封漏油的具体措施。
- Based on the structure and material feature of the shaft seal for the pumped storage sets,the method and principle applied new materials on shaft seal were provided. 本文以抽水蓄能机组主轴密封装置的结构和材料为基础,提出了应用新材料解决主轴密封装置的思路和方法。
- The working characteristics of side inserted agitators were analyzed first in this paper.Then,them ethods to solve the problem in shaft seal design were presented. 本文分析了侧向伸入式搅拌器的特点，并对轴端密封件的设计提出了可行的设计方案。结果表明该结构有较高的实用价值。
- A special design of barrel type shaft seal in Huiquan HQDL pump has greatly improved is dependability to ensure safe operation and to make servicing and checkup much easier and fast. 在慧泉HQDL系列水泵中专门设计的筒式（集装式）釉封提高了可靠性，确保了安全运转，并使维修和安装变得方便快捷。
- The expiration of contract is coming. 合同快到期了。
- When is the expiration of your driving license? 你的驾驶执照何时到期？
- A special design of barrel type shaft seal in HAIHE HQDL pump has greatly improved is dependability to ensure safe operation and to make servicing and checkup much easier and fast. 在海河HQDL系列水泵中专门设计的筒式（集装式）釉封提高了可靠性，确保了安全运转，并使维修和安装变得方便快捷。
- The upstream pumping mechanical seal was used as shaft sealing of vacuum plants. 研究了上游泵送机械密封在真空装备轴封中的应用。
