为了预报冒落事故，开展了声发射(AE)现场试验，并在块体分析的基础上布置了AE监测孔。
To predict roof falling AE field tests have been conducted and AE monitor holes are laid out based on the block analysis.
针对圆形烟道流速监测点布置存在的问题，用流体力学理论进行分析、优化，在确定采样断面后，在距采样孔0。
In view of problems existing in velocity of flow monitoring points collocation in circular flue, using hydrodynamics theory to analyze and optimize, one monitoring point at 0.
为了预报冒落事故，开展了声发射（AE）现场试验，并在块体分析的基础上布置了AE监测孔。
Roof falling and rib spalling occurred in any times. To predict roof falling, AE field tests have been conducted and AE monitor holes are laid out based on the block analysis.
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