求翻译：反射活动都由刺激引起，但当刺激停止以后，中枢兴奋并不立即消失，传出神经仍断续发放神经冲动，使反射活动延续一段时间，这一现象叫做反射的后作用或中枢兴奋的后放电。在一定范围内，刺激越强，或刺激作用时间越久，则后作用的延续时间也越长。中枢内神经元之间环路式的兴奋性突触联系是产生后作用的形态学基础。神经冲动经过网状联系中含有不同突触数目的许多侧枝，先后到达同一个传出神经元上，使传出神经元连续不断受到刺激而持续放电，是产生后作用的主要机制是什么意思？

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Reflection activities are caused by irritation, but when it stops after stimulation, hub excited and not immediately disappear, the outgoing nerves are still issuing nerve impulses, the reflective activities last for some time, this phenomenon is known as reflective of the after-effects or hub of ex

The reflection activity all causes by the stimulation, but works as after stimulation stop, the main center excited not immediately vanishes, the efferent nerve still off and on provided the nerve impulse, caused the reflection activity to continue period of time, this phenomenon named reflection af

Reflection activities were caused by the stimulus, but after when stimulation stops, Central does not immediately disappear, and efferent nerve is still intermittent issuing nerve impulses, reflecting activity continued for some time, this phenomenon is called a reflection of rear or central dischar

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