crankcase ['kræŋkˌkeɪs]

例句:

• The crankcase opening for the roaddraft tube was usually well shielded.
  行车气流抽吸管的曲轴箱开口通常是很好地遮挡着的.
  
• The crankcase ventilation system carries fresh air through the crankcase.
  曲轴箱通风系统要携带新鲜的空气通过曲轴箱.
  
• The crankcase is the lower part of the engine cylinder block.
  曲轴箱是发动机气缸体较低的部分.