接替R系列的是L系列，没有了传统经典的外表，没有了那磨砂的质感，没有了那兼顾的镁制防滚架。
Replace R series is L series, not a classic appearance, not the grind arenaceous qualitative feeling, without the consideration of the magnesium antiroll frame.
在一般条件下，标准齿轮滚刀只能加工与其模数、压力角相同的同制齿轮。
Generally, standard gear hobs are only used to machine gears with the same modul, pressure Angle as hobs themselves.
塑料制袋滚切技术是卷装背心袋生产线的核心技术。
Roll-cutting technology for producing plastic bag was deeply studied in this paper.
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