Establishing the foundation to improve the rotor shape parameter dramatically, realizing the Roots pump series design and production, sufficing the condition of the agile manufacturing technology.
为不断完善转子型线参数，实现罗茨泵系列化设计、生产，满足敏捷制造技术需要奠定基础。
There are many kinds of rotor profiles for roots vacuum pump.
罗茨真空泵的转子型线有很多种。
There are many kinds of rotor profiles for roots vacuum pump.
罗茨真空泵的转子型线有很多种。
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