This paper describes the mechanism pitch control with enzyme. A lot of data from commercial paper machine have showed that enzyme have a striking effect in pitch control.
本文叙述生物酶控制树脂障碍的机理，并用生产数据说明生物酶控制树脂障碍效果显著。
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This paper analyses the usage of LGK series of air plasma arc cutting machine, and enumerates the causes and solutions of striking arc, main circuit, gas path and cutting torch breakdown.