这类发明的性质本身就在呼唤人类的善良，呼唤全世界的友爱团结。

The very nature of these inventions cries out for the goodness in men; cries out for universal brotherhood; for the unity of us all.

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本文比较全面地介绍了纽甜的发明?理化性质、使用特性和工业应用等。

The invention, physical and chemical properties, features in use and application in industries of neotame are detailed in this paper.

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后来，随着速调管和空穴磁控管的发明，科学家便对厘米波的性质进行研究。

Later, with the klystron and cavity magnetron invention, scientists began to study the nature of centimeter wave.

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