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- Secondary seal material shall be FPM or EPDM and correspond to the seat material for maximum chemical resistance. 二级密封材料应该是FPM或三元乙丙橡胶和具有最好耐化学腐蚀性能的相应阀座材料。
- They are designed to provide a secondary seal in the event the cylinder valve develops leakage through the valve seat. 它们是设计用来在钢瓶阀门通过阀座产生泄露的情况下提供一个二次密封。
- Secondary seal material shall be FPM or EPDM and correspond to the/" target="_blank">the seat material for maximum chemical resistance. 二级密封材料应该是FPM或三元乙丙橡胶和具有最好耐化学腐蚀性能的相应阀座材料。
- Foreign-owned Enterprises, Joint venters Duplicate of business license, renrer's ID card, Unit's cacher or contract seal Unit cartifcation letter. 外商独资、合资企业企业营业执照副本、经办人身份证明、公章或合同章、法人委托书、单位介绍信。
- The structural characteristics of heat pumps:From the pump, gear, bearing seats, valve, bearing and seal unit with horizontal rotary pumps. 高温泵的结构特点:由泵体、齿轮、轴承座、安全阀、轴承及密封装置组成的卧式回转泵。
- By means of reaserched the friction pair surace failure and the material used in secondary seal ring,the leakage reason of mechanical seal and their solution measure are ffound. 通过对机械密封摩擦副表面失效及副密封圈用材的研究,寻找机械密封泄漏原因和解决办法。
- The secondary seal of the casing head spool adopts the BT-shape surface,which can get an ideal effect by selecting plastic seal gerase through the injecting mouth. 套管头四通的副密封采用BT型密封结构,这种结构通过注塑口注入塑料密封脂达到理想的密封效果。
- QGF barreled drinking water auto washing, filling and sealing unit. QGF型自动桶装饮用水冲洗、灌装、封口机组。
- A developing trend for the high-speed centrifugal compressor is predicted. The non-oil seal will gradually take the place of the wet seal and it will obtain zero leakage of the seal unit. 最后,对高速离心压缩机发展趋势做出了展望,提出无油密封将逐渐取代湿式密封,真正达到密封装置的介质的“零泄漏”。
- Application of secondary seal for floater 外浮顶储罐二次密封技术应用
- Friction force of secondary seal 副密封摩擦力
- XM-230/80 rotary seal head is a rotary seal unit on wellhead, specialized for negative pressure and low pressure drilling, characterized by reliable sealing effect, ease of opration and safe service. XM-230/80型钻井旋转密封头是一种专用于负压、低压钻井的井口旋转密封装置,具有密封可靠、操作简单和防爆、安全等优点。
- The gear reducers are sealed units requiring periodic lubricant change. 齿轮减速器是整体密封装置需要定期更换润滑剂。
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉,以便保存肉汁。
- The putty gives a good seal round the window. 窗户四周泥的油灰密封效果很好。
- The steering control module was a sealed unit, opened only during overhaul, with no specified overhaul time, and had accumulated 3,860 hours since last overhauled on March 3, 1998. 掌舵的控制模块是一个密封的单位, 在检修期间只打开,没有指定彻底检查时间,并且3,860个小时自从最后在1998年3月3日彻底检查。
- The luminous intensity on unit area. 单位面积上的发光强度。
- Our foil packets seal the flavour in. 我们用锡纸包装以保持原味。
- This document carries the royal seal. 这份文件上盖有王室印章。
- The seal on the bottle has perished. 瓶子的封记已经腐烂。