object shift 宾语漂移
shift-a add object 添加物体
shift object
改变对象
以上为机器翻译结果，长、整句建议使用 人工翻译 。
And since a moving object causes a tiny change (known as a Doppler shift) in the frequency of the reflected signal, Silent Sentry can also calculate how fast it is moving.
ECONOMIST: Remote sensing
应用推荐
模块上移
模块下移
不移动