As we were about to go on stage my band decided to roll a joint outside.
我们准备登台时，我的乐队决定在外面招徕人气。
Based on the principle of plate roll forming, a lock joint former is developed.
运用板料滚压成形原理，设计研制了通用的咬缝成型机。
Based on the principle of plate roll forming, a lock joint former is developed.
运用板料滚压成形原理，设计研制了通用的咬缝成型机。
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