“charity stamp”的概念、定义、翻译、参考文献-科学参考

单词	charity stamp
释义	charity stamp Encyclopedia 工学邮资凭证释 charity stamp附捐邮票为福利、健康、赈灾、慈善等事业筹款而在邮资外另加附捐金额的邮票。又称福利邮票、慈善邮票。
随便看	sampling system sampling technique of continuous random variables sampling technique of discrete random variables sampling technique of random process sampling technique of random vectors sampling test sampling theorem sampling theory sampling unit sampling up-the-ramp sampling with arbitrary probability sampling with equal probabilities sampling with equal probability sampling with non equal probabilities sampling with non-equal probabilities sampling with nonequal probabilities sampling without replacement sampling with PPS sampling with probabilities proportional to size sampling with probability proportional to size sampling With replacement sampling with replacement sampling with unequal probabilities samploscope Sam Raimi

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。