一听到发动机声响，就探出窗外，利用镜子的反射打出信号。
When he heard an engine, he leaned out the window and flashed a signal.
更近一点例子是，“日光反射信号器”一直通过类似的方式传递军事信号。
More recently, so-called “heliographs” have been used to relay military signals in a similar way.
这些被反射的信号也许干涉直接信号。
These reflected signals may interfere with the direct signal.
更近一点例子是，“日光反射信号器”一直通过类似的方式传递军事信号。
More recently, so-called "heliographs" have been used to relay military signals in a similar way.
利用反射镜法对其小信号增益系数进行了测量。
The small signal gain of the continuum was measured with the mirror.
说不定他无法鉴别水底的反射信号。
说不定他无法鉴别水底的反射信号。
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