有一群经常投稿的人对这份杂志是极为重要的.The core of regular contributors is essential to the magazine.她定期给校刊投稿.She regularly contributes to the college magazine.记者艾伦·尼恩负责在中美洲采访报道，定期向《纽约客》杂志投稿。Reporter Alan Nearn covers Central America and ...
Currently there are two typical spot - beam models with equal beamwidth and equal spot area.目前等波束宽度模型和等点波束面积模型是两种常用的点波束模型.It is important to eliminate or degrade the effect caused by the beamwidth of true seabed.为提高海底地形的...