您要查找的是不是：
- lightray propagation 光信号传播
- The sun sometimes spoils the propagation of radio waves. 太阳有时会影响无线电波的传播。
- Emission and propagation of energy in the form of rays or waves. 发射以光线或波的形式发出和传播能量
- The propagation of animals or plants. 动物的饲养，植物的培植
- Reproduction and spread; propagation. 复制和散布；繁殖
- Committee on Propagation of the Tradition! '优良传统发扬光大委员会'！
- Crack propagation usually begins slowly. 裂纹的增长常常是开始缓慢。
- Rose propagation has a long and rich history. 玫瑰繁殖有着悠久的历史。
- It may take some time for DNS propagation to occur. 等待DNS传播可能需要一段时间。
- The phenomenon is called anomalous propagation. 这种现象被称为异常传播。
- Studies on rapid propagation of Cornus alba'Aurea'. 金叶红瑞木快繁技术研究。
- In vitro Propagation of Adiantum raddianum Presl. 楔叶铁线蕨的离体快繁。
- The propagation material shall be confiscated. 繁殖材料应予没收。
- Sound Propagation in the Nocturnal Boundary Layer. 夜间边界层中的声传播。
- Forming and propagation of wave. 波的形成和传播。
- Cutting propagation test of Camellia japonica Linn. 山茶扦插育苗试验。
- Code Red Worm Propagation Modeling and Analysis. 本文建模和分析了红色代码蠕虫的传播。
- Radio Propagation for Modern Wireless Systems II. 现代无线通信系统电波传播2。
- Study on the Propagation of Melastoma dodecandru L. 地菍的繁殖研究。
- Tissue Culture and Rapid Propagation of Lilium spp. 青山百合的组织培养与快速繁殖。
