Half of the man is woman , the circumscription is as below : half is the woman beside him , the balance half is other varied women .

男人的一半是女人，定义如下：男人的一半是他身边的那个女人，剩下的一半是各式各样的别的女人。

This paper reviewed the past 50 years progress of applying ultrasonic telemetry in aquatic animals study , introduced the composition of ultrasonic telemetry system , its operation , and applicable circumscription , analyzed the major problems in aquatic animal telemetry with this technique , and proposed associated recommendations and applications .

本文回顾了超声波遥测应用于水生动物近50年来的发展历程，介绍了该技术的系统组成和使用方法，阐述了该技术的应用范围，分析了其应用于水生动物遥测所面临的问题，提出了相应建议和应用前景。