临界距离是指声源在室内稳定地辐射声波时,在某一方向上直达声能量密度与混响声能量密度相等的点到声源中心的距离,也称扩散场距离。当声源辐射指向性为球形时，各方向的临界距离相等，这时也称混响半径。
高能物理专业英语翻译D-62-SCIdict学术词... ... 准直仪长度 distance， collimator 临界距离 distance， critical 直距 distance， crow-flight ...
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之间存在一个临界距离，该处的第一峰值与等幅振荡的幅值相等。
It is interesting that there is a critical distance from the plate, where the first peak is equal to the one of the equal amplitude oscillations.
根据分析的结果评价了临界距离老空水下薄煤层联合开采的安全性。
Hereby the safety of the combined mining of thin seams under the close gob water was evaluated.
将疲劳切口系数定义为临界距离法得出的平均应力与热点应力之比值。
The fatigue notch factor is introduced as the ratio of average stress over the region of a critic distance around critic point to the hot spot stress.
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