Density modfulation
[电] 密度调制
🧩 词语组成解析
🗣️ 情景例句
Thank you for your understanding and cooperation in this matter.
谢谢你们对此事的理解和合作。
It's out of the question.
这是不可能的。
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。