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通常中餐上菜的次序为首先是冷盘,接下来是主菜,随后是热炒,然后上点心和汤,最后上果盘。
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与来宾交谈时,要聚精会神,切不可 一心二用,所答非所问,更不可忙于其他事务。
This modulated carrier is then transmitted to the required destination where it is received and the original information signal is obtained by modulation.
Sophisticated techniques have been developed for this process by using magnetic carrier waves operating at radio frequencies as well as microwave and millimeter wave frequencies.
The information source provides an electrical signal to a transmitter comprising an electrical stage which drives an optical source to give modulation of the lightwave carrier.
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