根据实际开挖所揭露的岩溶状况，需要调整超前支护和初期支护参数，以保证锚洞施工安全。
In accordance with the actual karst excavation, advanced and initial supporting parameters should be adjusted for construction safety of the anchor tunnel.
开大添加风量时应缓慢当心，应超前做好过热汽温调整加强对过热器管壁温度监督。
Open the add volume should be slow to be careful, be well ahead of the superheated steam temperature of superheater tube wall temperature adjustment to strengthen supervision.
调整超前滞后环节的补偿角度使信号相位相对于时滞作用反向偏移，从而削弱时滞对系统动态性能的影响。
The angle compensation provided by lead and lag component is contrary to the angle excursion caused by time delay. So the influence of time delay will be decreased.
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