?观察定位法
... locating spot定斑位,定位斑... sight locating观察定位法 locating bush定位衬套 ...
The birds usually forage by sight during the day and less efficiently at night by locating prey by touch using their bills.
BBC: Grangemouth and Longannet lights help birds feed at night
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。