Homodyning

零差探測(cè)

??? 情景例句

Please sit down, Mr. Stewart.
請(qǐng)坐, Stewart先生。
When did you get off work?
你什么時(shí)候下班?
No, thanks. It's big, but it isn't heavy. It's light.
不用了,謝謝,是大盒子,但不重。很輕。
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