中文摘要：

这份报纸系统地在陆地表面上为降露的大小总结以前的测量方法和观察仪器，为陆地表面降露分析普通观察仪器的特征，并且描述几个基本降露测量方法。而且，这些方法和仪器的基本原则被解释，并且他们的优点，劣势，和适用性被分析。为这些观察仪器的进一步的改进和测量方法的降露的发展的建议被介绍，并且为利用降露的新技术和科学建议被阐明。

英文摘要：

This paper systematically summarizes previous measuring methods and observational instruments for the magnitude of dewfall on land surface, analyzes the characteristics of common observational instruments for land surface dewfall, and describes several basic dewfall measurement methods. Moreover, the basic principles of these methods and instruments are interpreted, and their advantages, disadvantages, and applicability are analyzed. Recommendations for the further improvement of these observational instruments and the development of dewfall measuring methods are presented, and new technologies and scientific proposals for exploiting dewfall are elucidated.