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- double sealed bearing 双密封轴承
- Turning the envelope over, his hand trembling, Harry saw a purple wax seal bearing a coat of arms. 他的手颤抖着，把信封翻了个面，然后哈利看见一个紫色的蜡封，上面带有一层盾形纹章。
- The pot cover has applied double sealing. 锅盖采用双道密封。
- Insert ball bearing unit is consisted of a double sealed, single row bearing and one of various types of housings (cast iron or stamping steel housing). 带座外球面球轴承由一个双面密封且外圈具有球形外截面的宽内圈深沟球轴承和一个轴承座(铸铁座或钢板冲压座)两部分组成。
- Model B Guide The Model B Guide is an integral part of most perminent seal bore and retrievable seal bore packers. B型引鞋大多数永久式和可取式封隔器的一个部件，B型引鞋用于连接安装在封隔器下部的尾管、磨铣延长管、或其他设备。
- Design of High Speed and Long Life Seal Bearing 高速长寿命密封轴承的设计
- Introducing the structure design,working principle and performance of double sealed guide valves. 介绍了双密封导轨阀的结构设计、工作原理与性能特点。
- One-Step Pressing Molding Device for Snap Slot of Seal Bearing 密封轴承止动缺口一次冲压成形装置
- There are double seals for ball baring unit and it is normally pre-greased for working in the condition of dust, slob and causticity. 带座外球面轴承一般为预填装润滑脂，采用双层密封形式，适合在粉尘、泥水、腐蚀性介质的场合内使用，利于主机工作。
- Application of Dry Gas Double Seal for Hydrogen Compressor 双端面干气密封在氢压机上的应用
- The dynamically balanced rotor assembly,sealed bearings with grease reserviors. 动平衡的转子总成，具有蓄油装置的全密封轴承。
- Application of Liquid-filled Double Seal in Floating Roof Tank 充液式双重密封在浮顶罐中的应用
- Several Features About Semi-module and Double Seal Air Preheater 浅谈半模式双密封空气预热器的几个特点
- Design of Double Lib Contact Seal with Mutual Compensation for Sealed Bearing 密封轴承双唇口互补接触式密封的设计
- Gravel pack seal bore receptacle 砾石充填密封座
- The dynamically balanced rotor assembly, sealed bearings with grease reserviors. 动平衡的转子总成,具有蓄油装置的全密封轴承。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- The main SKF focus is on the bearings without intermediate rings which have four outer rings and, of course, on the sealed bearings. SKF的主要重点放在不带中间圈但有四个外圈的轴承上,当然也放在密封轴承上。
