往复

• Reciprocating internal combustion engines - graphical symbols
  往复式内燃机图形符号
• Hv 481 , hv 482 , hv 483 type can traverse unit
  Hv481 hv482 hv483型盛丝筒往复装置
• Reciprocating internal combustion engines . service classes
  往复式内燃机.使用等级
• Specifications for reciprocating cryogenic liquid pumps
  往复式低温液体泵.技术条件
• Design on reciprocating pump of high pressure entry type
  高压入口往复泵的优化设计
• Appearance quality for reciprocating rubber seals
  往复运动橡胶密封圈外观质量
• High - pressure reciprocating - pump valve virtual design
  高压往复泵泵阀虚拟设计
• Reciprocating mowers - types and basic parameters
  往复式割草机型式与基本参数
• Reciprocating internal combustion engines - fire protection
  往复式内燃机防火
• Reciprocating internal combustion engines . safety requirements
  往复式内燃机.安全要求