Terms for subject Explosives and Explosive Ordnance Disposal containing first

English	Chinese
distance of first roof fall	初次垮落步距初次垮落时，自开切眼到支架后排放顶线的距离
distance of first weighting	老顶初次来压步距老顶初次来压时，自开切眼到煤壁的距离
first arrival	初至波
first blasting	原矿体爆破
first caving	初次放顶在长壁工作面，从开切眼开始向前推进，通过爆破或其他方法,使直接顶板第一次垮落
first caving distance	初次放顶距初次放顶时，自开切眼到支架后排放顶线的距离
first fire mix	速燃点火药
first invariant of stress	应力的第一不变量
first meridian	本初子午线参见 initial meridian ；prime meridian
first-order angulation	一阶三角测量
first-order model	一阶模型
first-order relationship	第一序列关系
first ripping	初次挑顶
first roof fall	初次垮落在长壁工作面,从开切眼开始向前推进,直接顶板的第一次自然垮落
first supporting	巷道一次支护巷道掘进后立即进行的支护。一次支护有时允许巷道产生较大变形
first weighting	老顶初次来压老顶初次垮落前后在采煤工作面引起的矿山压力显现
first working	采矿开拓工作
first working	一次回采
inverse first order rate constant	一阶反向速率函数
quality-first principle	质量第一原则
The mean or average firing time for any group of detonators typically is slightly offset from the nominal firing time. This shift of the mean from the nominal is the first timing accuracy factor. The distribution of the firing times around the mean firing time is the second factor	一组雷管的平均起爆时间一般稍微偏离标称的起爆时间。这种平均值对公称值的偏移则是第一个影响定时精确的因素。在平均值附近的起爆时间分布是第二个因素
These regions are the first to apply the cooperative medical system in rural areas	这些地区率先实行了农村合作医疗制度