程前

对固定非挤压时间进行了研究，在此基础上设计了55MN油压双动短行程前上料铝挤压机。

The dead cycle time has been researched . Based on above research , a 55 MN oil-driven extrusion press with double-action has been designed .

他在快要跑完全程前已精疲力竭。

He runs out of steam shortly before the end of the race .

孕34～37周产程前剖宫产：重度新生儿呼吸窘迫的危险因素有哪些？

Caesarean before labour between 34 and 37 weeks : What are the risk factors of severe neonatal respiratory distress ?

重点分析了短行程前上料挤压设备的优点，介绍了短行程前上料挤压工艺的关键技术；

The advantages of front loading compact extrusion press have been analysed emphatically . The key technology of front loading compact extrusion press has been introduced .

短流程前处理染色加工工艺是对传统退浆、精炼、漂白、染色四步工艺合理缩减成三步、二步甚至一步法对纺织品进行加工工艺的总称。

Short pre-treatment process is reasonable reduce the traditional desizing , scouring , bleaching , dyeing four-steps processing into three steps , two-steps or even one-step processing to produce textiles .