1) once-through penetration length
一次透照长度
1.
Through the analysis to the concepts of once-through penetration length and the deduction of the formula of the method of inner penetration of circular bead at off-center locationand the Calculation and the comparison between the defferentresults, the anthor makes an approach to the formula 4.
通过对一次透照长度概念的分析以及对环焊缝内透偏心法(F一次透照长度计算公式的推导和计算比较,对《射线检测》中公式4。
2) Effective penetrated length
有效透照长度
3) Transilluminous times
透照次数
4) straight;freez-ing
一次冻透
5) scanning thickness
透照厚度
1.
By comparing the scan pictures made by ~(75) Se radiographic source,~(192) Ir radiographic source and X-ray on steel piates with different thickness,it is proven that the ~(75) Se radiographic sorce is of better tolerance,it is provided that the scanning thickness can be reduced to 4 mm in order to facilitate the radiographic inspection of small-diameter pipes.
利用75Se1、92Ir和X射线对阶梯试块及不同厚度钢板的对比试验,证明了75Se射线源在小径管的透照中具有较好的厚度宽容度,并提出了透照厚度下限降到4 mm左右的依据,以利于薄壁小径管设备的射线检测。
6) twisted length
一次风边界转捩长度
1.
The twisted length has been defined.
对一次风边界转捩长度b进行了定义,分析了一次风边界转捩长度的影响,并对其变化规律进行了研究,为同轴旋转分层流燃烧器分层机理的研究打下了基础。
补充资料：雪照
1.用雪的反光来照明。谓苦学。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条