2.The invention relates to a cambering printing machine, in particular to a high-speed cambering printing machine which can automatically proof the version.
本发明涉及曲印刷机,具体为一种可自动对版的高速曲印刷机。
3.The influencing factors of coal arch camber in planomural coal bin and coal drop pipe with rectangular or circular cross section during coal drop are studied theoretically.