English translation for "natural source of energy"

天然能源

Similar Words：

"natural sonar" English translation, "natural sound" English translation, "natural sound source" English translation, "natural source" English translation, "natural source of air pollution" English translation, "natural source of ultraviolet" English translation, "natural sources" English translation, "natural souring" English translation, "natural space radiation" English translation, "natural span of life" English translation