齿轮

• Fracture failure analysis of gears working in locomotive
  机车用齿轮断裂失效分析
• Specifications for powder metallurgy oil pump gears
  粉末冶金机油泵齿轮.技术条件
• Short film leader , double gears and single way moving
  ?短导片双齿轮单路输送。
• Gears - wear and damage to gear teeth - terminology
  齿轮.齿轮齿的磨损和损害.术语
• The construction forms of sliding - teeth gear pump
  非啮合式二齿齿轮泵流量特性研究
• Small craft - steering gear - geared link systems
  小艇.操舵装置.齿轮传动连接系统
• Gear nomenclature , definitions of terms with symbols
  齿轮命名术语的定义和符号
• Study and produce of austenitic - bainite ductile iron gear
  贝氏体球铁齿轮的研究
• Tabular layouts of article characteristics for gear units
  齿轮机构产品特性图表
• Denominations on gears and gear pairs ; worm gear pairs
  齿轮和齿轮副的名称.蜗轮副