您要查找的是不是：
- Remove and discard the front crankshaft oil seal. 拆下并抛弃曲轴前油封。
- GUANGZHOU ASIA SUPER OIL SEAL COMPANY. 广州市天河区东圃明兆油封机械经。
- Linqing City Hongjiang Bearing Forging Co., Ltd., mainly engaged in: Bearing forging, oil seal ring, bearing business. 临清市洪江轴承锻造有限公司、主要经营：轴承锻件、油封环、轴承业务。
- The process marked with a double ring is an error trapping process. 使用双环标记的进程为错误捕获进程。
- The oil seal has the directivity, cannot install instead. 油封有方向性，不能装反。
- Slide-valve vacuum pump is a usual mechanical oil seal vacuum pump. 滑阀真空泵是一种常见的油封式机械真空泵。
- The final drives are double reduction with spur gear and segment sprocket, which are sealed by floating oil seal for easy service. 两级直齿轮减速，浮动油封密封，链轮采用组合式，便于维修。
- With the progress of CCAE,the thickness of gallblader wall and appearing rate of “double ring”sign are increased. 基于此现象与文献报道的急性胆囊炎囊壁超声诊断指标差异较大，故需引起注意，以免漏诊和误诊。
- The final drives are double reduction with spur gear and unitary sprocket, which are sealed by floating oil seal for easy service. 两级直齿轮减速,浮动油封密封,整体链轮。
- Changchun NOK-Freudenberg Oil Seals Co., Ltd. 长春恩福油封有限公司。
- Three cases were chronic cholecystitis.There were 14 cases of CCAE and 7 cases of septic and gangrenous cholecystitis with “double ring”sign. 出现“双环”征在慢性胆囊炎急性发作者中为14例，化脓性及坏疸性胆囊炎中7例。
- Install the new upper rear bearing oil seal with the white paint facing towards the rear of the engine. 安装新的上后轴承油封，使白漆面向引擎后部。
- The speed table and the ratemeter altered to aeronautical instrument's double ring chrome-plating design, the night light also transformed hotter red from the green. 时速表和转速表则改成了航空仪表的双圆环镀铬设计，夜灯也从绿色转化成了更加火辣的红色。
- At the same time, we can provide the high-quality oil seal, slewing bearings products. 同时，我司可以提供高品质的油封、回转支承产品。
- Designer Arnaud Lapierre (love the name) designed a prototype watch in conjunction with Swatch.The end result is a double ring ceramic device that tells time by touch called Sens. 最上面的圆圈通过与12点钟位置的距离来指示现在几点，第二个圆圈是定时用的，可以不用看地设定闹钟时间。
- The material of oil seal is advance, reasonable, and the processing of confect is preciseness. 因油封胶料配方先进、合理、配制过程严谨、拉伸强度变化率小，能适应各种恶劣的变化环境。
- Design of mold and research of process for polyurethane elastomer for oil seal are introduced. 介绍聚氨酯弹性体油封的注射模具的设计及工艺研究。
- The moisture detection system shall be designed to detect the entrance of moisture in the stator and lower oil seal housing. 潮气检测系统应该用于检测是否有潮气进入定子和下部油封箱体。
- Practice proves that gained remarkable improvement of oil leak of reducer afler reform oil seal for the magnetic machinery. 实践证明,改造后的磁力机械油封使减速机漏油问题得到了显著改善。
- Conclusion: The technique of reduction mammoplasty in resection of sections of glandular tissue with periareola concentric double ring incisions is a simple, practical and easy method. 结论：本术式行巨乳缩小塑形效果可靠，方法简便实用。
