COP 17 as it was known is the 17th conference of parties, an annual meeting of world governments and interested parties aimed at forging a large scale agreement to tackle the climate change.
COP 17就像知道的那样，叫做第17次相关方会议，是一个由全球国家和相关方参加的年度会议，其目的是形成一个大规模的解决气候变化的协议。
The production of turbine blades mainly uses forging billets in small-scale production, so the forging die design requires much higher production.
汽轮机叶片目前主要采用小批量生产的锻件毛坯，其对锻造模具设计效率要求很高。
For the convenience of casting, machining, transporting, etc, the beam of large-scale hydraulic forging press has always been designed as combined structure and connected with pre-stress bolts.
大型液压机的横梁由于铸造、加工、运输等原因，大多设计成组合结构，采用预紧螺栓组连接。
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