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- RING PISTON shanghai engine 第一道环
- At the same value of frequency and size, the directivity of quadrate ring piston is sharper than that of quadrate piston. 在同一声波频率以及相同尺寸的情况下，方环活塞声源要比方形活塞声源的远场指向性更尖锐。
- In this paper, the radiation pressure and directional formulation are calculated by use of Reily-integrate, The directivity of radiated sound field of quadrate ring piston is analyzed. 摘要利用瑞丽积分，计算了方环活塞声源远场的辐射声压分布以及指向性公式，并对辐射声压的远场指向性进行了分析；同时，与方形活塞声源的指向性作了对比。
- Shanghai Engineering Plastic Piping System Co., Ltd. 上海艾普勒管路系统有限公司。
- Double-acting PTFE slide ring piston seals 双冲程PTEF滑动环活塞密封
- Double-acting polyurethane slide ring piston seals 双冲程聚亚胺酯滑动环活塞密封
- Oil pump idle gear part shanghai engine 机油泵惰齿轮装配部件
- Connecting rod bolt shanghai engine 连杆螺拴
- Jointing part of core of oil cooler shanghai engine 机油冷却器芯子焊接机加工部件
- The directivity of acoustic field radiated from ring piston source 环状活塞声源辐射声场指向性研究
- Injection pump idle gear part shanghai engine 喷油泵惰齿轮装配部件
- All the apprentices rushed to help fit the piston. 徒工们都跑过来帮助装活塞。
- Google said Boon-Lock Yeo, director of its Shanghai engineering office, would take over Lee's engineering responsibilities. 谷歌方称：上海工程部负责人杨文洛将接管李开复掌管的全部工程方面的事务；
- Get lathe No.9 set to turn the new piston. 把九号车床调好来车这个新活塞。
- Intake vavle seat shanghai engine 进气门座
- Exhaust vavle seat shanghai engine 排气门座
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- The piston seems ok. Maybe something else is wrong. 活塞似乎没问题。可能别的什么东西坏了。
- He had to make a quick change at Shanghai. 他不得不在上海匆忙换车。
