请你将A组的句子用线与合适的B组句子连接起来。
Match the sentences in column a with a proper one in column B.
下列陈述句中的每一个词语或一组词语下面画有一条线。
There is a line under each word or group of words in the statements below.
分析了点声源组和线声源的指向性。
The directivity of the group of the point source and the line source is analyzed.
另一组包含一个黄色和黑色的线。
线的话，只是烧掉一组温控卡或一组热电偶。
Line, only to burn a group of temperature control card or a group of thermocouple.
线的话，只是烧掉一组温控卡或一组热电偶。
Line, only to burn a group of temperature control card or a group of thermocouple.
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