由于在线分析仪表不仅价格昂贵，而且分析仪表滞后大，最终将导致控制系统的性能下降，从而难以满足生产要求。
On-line analysis instruments have several disadvantages including costly price, great lag etc., which lead to descend of control system's performance and can't meet production requirements.
如果仪表指针出现了滞后现象等，将旋下仪表接头六方螺母，将缓冲器旋下清洗干净，装好后再进行使用。
If instrumentation pointer have lagged behind such phenomena, unscrew the meter connector six-party nut, buffer unscrew clean, pack good again after use.
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