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- pair production attenuation coefficient 电子对生成衰减系数
- Two of the three processes, photoelectric effect and pair production, eliminate the photons undergoing interaction. 三种过程中的两种，即光电效应和对产生，使光子受到作用后消失。
- Jentschke of the Deutsches Elektronen Synchrotron (DESY) about the possibility of doing a pair production experiment at Hamburg. 由反物质组成的宇宙到哪里去了？
- To eliminate the noise included in electromyography(EMG),a de-noising method by multi-scale product coefficient hard thresholding was presented. 为了消除肌电信号中的噪声,提出了一种基于相邻尺度积系数的硬阈值滤波方法。
- The erosion resistance of enameling pipe is enhanced but the equipment is expensive, the procedure is complex, the production coefficient is low and the cost of enameling pipe is high. 俄罗斯率先将搪瓷技术应用于管道防腐，大大提高了管道的耐蚀性，但设备投资巨大、工序繁多、生产效率低，成本相对较高。
- pair production of particle and its anti - particle 正反粒子对产生
- particle pair production and annihilation 粒子对产生和湮灭
- I bought a pair of tan leather shoes the other day. 前几天我买了双棕褐色的皮鞋。
- The technology has some new characteristics.For exemple,it can realize progressive forming.Its production coefficient is higher than the heading .And it can adapt to more kinds of products . 纵轧成形的特点在于:可实现连续成形,与镦压法比较,其生产率较高,适应产品范围广;
- improved production coefficient method 改进的生成系数法
- electron-positron pair production 电子对产生
- pair production of particle and its anti-particle 正反粒子对产生
- internal-conversion pair production 内转换偶产生
- Don't mix up this pair of synonyms. 别把这两个近义词混淆了。
- He wears an oily old pair of jeans. 他穿着一条沾满油污的旧牛仔裤。
- This pair of scales is not in equilibrium. 这个天平不平衡。
- This pair of trousers is too tight for me. 这条裤子我穿太紧了。
- She splashed out on a new pair of shoes. 她心血来潮买了一双新鞋。
- Moreover, as is now generally recognized, certainty the determination of the magnitudes of the values is straightforward on the Ricardo-Marx-Leontief assumption of fixed production coefficients. 此外，像现在普遍认同的，价值大小的决定因素在李嘉图-马克思-列昂惕夫固定生产系数假设下是直截了当的。
