• 1. upper head: 上封头 | 主导权 | 上头
• 2. upper head injection: 上封头注水
• 3. get the upper head: 占上风

更多释义

• 1.The layout of upper head with lowering working gate of Three Gorges ship lift is studied.
  对三峡升船机上闸首下沉式工作闸门布置进行研究。
  dict.yoduao.com
• 2.The defects of forging technology of upper head of 1200mm urea synthesis tower were analysized, and it was thought that the inter defect was loosen.
  分析了尿素塔上封头体锻造工艺存在的缺陷，认为疏松是造成缺陷的原因。
  dict.yoduao.com
• 3.It is crucial that the upper back and neck are held in an erect position to give support for the head.
  重要的是：上背和颈部要挺直以支撑头部，这一点很重要。
  dict.yoduao.com

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