The developmental threshold was fixed at 26 of disease index based on the relative error margin analysis.
根据感病损失量方程，病情很轻时损失甚微，经相对误差限法分析，将病情指数26定为该病的发生指标。
This text explains to Xutuan coal mine west breeze well and main well a method, error margin for of run-through measuring analysis with anticipate.
介绍了许疃煤矿西风井与主井之间的贯通测量的方法、误差分析和预计。
This text explains to Xutuan coal mine west breeze well and main well a method, error margin for of run-through measuring analysis with anticipate.
介绍了许疃煤矿西风井与主井之间的贯通测量的方法、误差分析和预计。
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